v0.0.4 - Implemented browser tabs with GtkNotebook, per-tab toolbars, session restore, settings dialog, and keyboard shortcuts. Made Other Qube (qrexec) the default n_signer transport.

2026-07-11 20:17:56 -04:00
parent 40eb1d1a16
commit 0160b70dc2
14 changed files with 1965 additions and 436 deletions
--- a/2
+++ b/2
@@ -17,7 +17,7 @@ NOSTR_LIB  = ./nostr_core_lib/libnostr_core_x64.a
 NOSTR_DEPS = -lsecp256k1 -lssl -lcrypto -lcurl -lz -ldl -lpthread -lm

 BIN := sovereign_browser
-SRC := src/main.c src/key_store.c src/login_dialog.c src/nostr_bridge.c src/nostr_inject.c src/history.c
+SRC := src/main.c src/key_store.c src/login_dialog.c src/nostr_bridge.c src/nostr_inject.c src/history.c src/settings.c src/tab_manager.c src/session.c

 $(BIN): $(SRC) $(NOSTR_LIB)
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(NOSTR_LIB) $(LDLIBS) $(NOSTR_DEPS)
--- a/README.md
+++ b/README.md
@@ -41,8 +41,9 @@ because trust moves to the layer where it belongs: your keys.

 ## Current status

-Working proof-of-concept: a C99 + WebKitGTK window with a URL bar that loads
-real HTTPS pages. Verified loading `https://laantungir.net` cleanly. See
+Working browser: a C99 + WebKitGTK window with multi-tab support, a URL bar
+per tab, Nostr login, and `window.nostr` injection. Verified loading
+`https://laantungir.net` cleanly. See
 [`docs/webkit-poc-findings.md`](docs/webkit-poc-findings.md) for the friction
 report from the POC phase (and the Servo fallback exploration).

@@ -125,15 +126,53 @@ Supported methods:
 See [`plans/nostr-login-integration.md`](plans/nostr-login-integration.md) for
 the full implementation plan.

+### Browser tabs
+
+The browser supports multiple tabs via a `GtkNotebook`. Each tab has its own
+toolbar (hamburger menu + URL entry) and `WebKitWebView`. All tabs share a
+single `WebKitWebContext`, so the `sovereign://` Nostr bridge, security
+settings, and TLS policy apply to every tab automatically.
+
+**Tab features:**
+
+- New tab: `Ctrl+T` or the `+` button at the end of the tab strip
+- Close tab: `Ctrl+W`, per-tab close button, or middle-click on the tab label
+- Switch tabs: `Ctrl+Tab` / `Ctrl+Shift+Tab`, `Ctrl+PageUp` / `Ctrl+PageDown`
+- Focus URL bar: `Ctrl+L`
+- Right-click tab context menu: New Tab, Close Tab, Close Other Tabs, Close
+  Tabs to the Right, Duplicate Tab, Reload Tab
+- Drag tabs to reorder
+- Tab titles update from page load
+- Session save/restore: open tabs are saved on exit and restored on next
+  launch (configurable in Settings)
+
+**Settings dialog** (hamburger menu → Settings…):
+
+- Restore session on startup (default: on)
+- New tab URL (default: `https://example.com`)
+- Tab bar position: Top / Bottom / Left / Right (default: Top)
+- Show tab close buttons (default: on)
+- Middle-click to close tab (default: on)
+- Ctrl+Tab to switch tabs (default: on)
+- Maximum tabs (default: 50)
+- Allow drag to reorder tabs (default: on)
+
+Settings are persisted to `~/.sovereign_browser/settings.conf`. Session state
+is saved to `~/.sovereign_browser/session.txt`.
+
+See [`plans/browser-tabs.md`](plans/browser-tabs.md) for the full
+implementation plan.
+
 ## Roadmap

 1. ✅ Base browser (WebKitGTK + C99, loads pages)
-2. ⏳ Nostr login (GTK dialog → nostr_core_lib → nostr_signer_t)
-3. ⏳ `window.nostr` injection (`sovereign://` URI scheme bridge)
-4. ⏳ Security strip (disable SOP/CORS, accept any cert, shared context)
-5. ⏳ FIPS URI scheme (`fips://` / `*.fips` via WebKitGTK scheme handler)
-6. ⏳ `nostr://` content scheme
-7. Future: agent runtime (didactyl hosting), multi-window, FIPS-distributed
+2. ✅ Browser tabs (GtkNotebook, per-tab toolbar, session restore, settings)
+3. ⏳ Nostr login (GTK dialog → nostr_core_lib → nostr_signer_t)
+4. ⏳ `window.nostr` injection (`sovereign://` URI scheme bridge)
+5. ⏳ Security strip (disable SOP/CORS, accept any cert, shared context)
+6. ⏳ FIPS URI scheme (`fips://` / `*.fips` via WebKitGTK scheme handler)
+7. ⏳ `nostr://` content scheme
+8. Future: agent runtime (didactyl hosting), multi-window, FIPS-distributed

 ## License

--- a/2
+++ b/2
@@ -1 +1 @@
-0.0.3
+0.0.4
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -275,8 +275,11 @@ flowchart LR

 ### Layers

-1. **Host application (C99).** Owns the window, URL bar, tabs, key store, and
-   the request router. This is where the "reckless" policy lives.
+1. **Host application (C99).** Owns the window, tab strip (`GtkNotebook`),
+   per-tab toolbars (URL bar + hamburger menu), key store, and the request
+   router. This is where the "reckless" policy lives. Tab management is in
+   `tab_manager.c`, user preferences in `settings.c`, and session save/restore
+   in `session.c`.

 2. **Request router.** Inspects every outgoing URL:
   - `http://` / `https://` → engine's normal network stack (with CORS /
--- a/plans/browser-tabs.md
+++ b/plans/browser-tabs.md
@@ -0,0 +1,249 @@
+# Browser Tabs Implementation Plan
+
+## Overview
+
+Add full browser tab support to sovereign_browser. Each tab gets its own
+toolbar (URL bar + hamburger menu) and WebKitWebView. All tabs share a single
+`WebKitWebContext`, so the `sovereign://` Nostr bridge, security settings, and
+TLS policy apply automatically to every tab. Tab behavior is configurable via
+a new settings module.
+
+## Architecture
+
+```mermaid
+flowchart TB
+    subgraph Window
+        Notebook[GtkNotebook — tab strip]
+        NewTabBtn[New Tab Button +]
+    end
+
+    subgraph TabPage
+        Toolbar[Toolbar: hamburger + URL entry]
+        Webview[WebKitWebView]
+    end
+
+    Notebook -->|page 0| TabPage
+    Notebook -->|page 1| TabPage
+    Notebook -->|page N| TabPage
+
+    TabPage -->|shared| Ctx[WebKitWebContext — sovereign bridge, security, TLS]
+    Ctx --> NostrBridge[nostr_bridge.c]
+    Ctx --> NostrInject[nostr_inject.c — per-webview]
+
+    TabManager[tab_manager.c] -->|manages| Notebook
+    Settings[settings.c] -->|configures| TabManager
+    Session[session.c] -->|save/restore| TabManager
+```
+
+### Key design decisions
+
+1. **Per-tab toolbar.** Each notebook page is a vertical `GtkBox` containing
+   the toolbar (hamburger + URL entry) on top and the `WebKitWebView` below.
+   This is simpler than a shared toolbar that has to swap signal handlers on
+   tab switch, and it matches the user's preference.
+
+2. **Shared `WebKitWebContext`.** All `WebKitWebView` instances are created
+   from the same context. The `sovereign://` URI scheme registration, security
+   manager flags, and TLS error policy are set once on the context and apply
+   to all tabs. No per-tab re-registration needed.
+
+3. **Per-webview `nostr_inject_setup()`.** The `window.nostr` injection uses
+   `WebKitUserContentManager`, which is per-webview. Each new tab calls
+   `nostr_inject_setup()` on its own webview.
+
+4. **`tab_manager.c` owns the `GtkNotebook`.** It provides functions to
+   create, close, switch, and query tabs. Each tab is tracked in a struct
+   holding the webview, URL entry, hamburger button, and tab label widget.
+
+5. **Settings module.** A new `settings.c`/`settings.h` persists user
+   preferences to `~/.sovereign_browser/settings.conf` (simple key=value
+   text file). Configurable options:
+
+   | Setting | Default | Description |
+   |---------|---------|-------------|
+   | `restore_session` | `true` | Restore open tabs on next launch |
+   | `new_tab_url` | `https://example.com` | URL loaded in new tabs |
+   | `tab_bar_position` | `top` | `top` / `bottom` / `left` / `right` |
+   | `show_tab_close_buttons` | `true` | Show per-tab close button |
+   | `middle_click_close` | `true` | Middle-click on tab closes it |
+   | `ctrl_tab_switch` | `true` | Ctrl+Tab cycles tabs |
+   | `max_tabs` | `50` | Maximum simultaneous tabs |
+   | `tab_drag_reorder` | `true` | Allow drag to reorder tabs |
+
+6. **Session module.** `session.c`/`session.h` saves the list of open tab URLs
+   (one per line) to `~/.sovereign_browser/session.txt` on window destroy, and
+   restores them on startup if `settings.restore_session` is true.
+
+## New files
+
+### `src/settings.h` / `src/settings.c`
+
+```c
+typedef struct {
+    gboolean restore_session;
+    char     new_tab_url[512];
+    int      tab_bar_position;   /* GTK_POS_TOP, etc. */
+    gboolean show_tab_close_buttons;
+    gboolean middle_click_close;
+    gboolean ctrl_tab_switch;
+    int      max_tabs;
+    gboolean tab_drag_reorder;
+} browser_settings_t;
+
+void          settings_load(browser_settings_t *out);
+void          settings_save(const browser_settings_t *s);
+const browser_settings_t *settings_get(void);  /* global singleton */
+```
+
+### `src/tab_manager.h` / `src/tab_manager.c`
+
+```c
+typedef struct {
+    WebKitWebView *webview;
+    GtkWidget     *url_entry;
+    GtkWidget     *hamburger;
+    GtkWidget     *tab_label;     /* composite: icon + title + close btn */
+    char           current_url[2048];
+    char           title[256];
+} tab_info_t;
+
+void  tab_manager_init(GtkContainer *parent, WebKitWebContext *ctx);
+int   tab_manager_new_tab(const char *url);
+void  tab_manager_close_tab(int index);
+void  tab_manager_close_active(void);
+int   tab_manager_get_active_index(void);
+tab_info_t *tab_manager_get_active(void);
+tab_info_t *tab_manager_get(int index);
+int   tab_manager_count(void);
+void  tab_manager_set_title(int index, const char *title);
+```
+
+### `src/session.h` / `src/session.c`
+
+```c
+void session_save(void);   /* called on window destroy */
+int  session_restore(void); /* called at startup, returns tab count created */
+```
+
+## Modified files
+
+### `src/main.c` — major refactor
+
+- Remove the single `webview` / `url_entry` / `toolbar` creation.
+- Create `WebKitWebContext` once, configure security + `sovereign://` bridge
+  on it (existing code moves here, unchanged logic).
+- Call `tab_manager_init()` with the window's vbox and the shared context.
+- The hamburger menu builder moves into `tab_manager.c` (or a shared helper)
+  since it now needs to reference the per-tab webview, not a global.
+- All menu callbacks (`on_menu_reload`, `on_menu_stop`, `on_menu_inspector`,
+  `on_menu_open_file`, `on_menu_history_item`) fetch the active tab's webview
+  via `tab_manager_get_active()` instead of receiving it as a parameter.
+- `on_load_changed` and `on_load_failed` are connected per-tab inside
+  `tab_manager_new_tab()` and update the per-tab URL entry and tab title.
+- `on_url_activate` loads the URL into the active tab's webview.
+- Keyboard shortcuts: a `key-press-event` handler on the main window checks
+  for Ctrl+T / Ctrl+W / Ctrl+Tab / Ctrl+Shift+Tab / Ctrl+PageUp / Ctrl+PageDown.
+- `on_window_destroy` calls `session_save()` before cleanup.
+
+### `src/nostr_inject.c` — no changes
+
+`nostr_inject_setup()` already takes a `WebKitWebView*` and is called
+per-webview. The tab manager calls it for each new tab.
+
+### `src/nostr_bridge.c` — no changes
+
+The bridge is registered on the shared `WebKitWebContext`. All webviews on
+that context automatically get the `sovereign://` scheme handler.
+
+### `src/history.c` — no changes
+
+History is already global. All tabs contribute to and read from the same
+history list.
+
+### `Makefile`
+
+Add `src/settings.c src/tab_manager.c src/session.c` to `SRC`.
+
+## Tab UI layout
+
+```
+┌──────────────────────────────────────────────────────┐
+│  [Tab 1 ×] [Tab 2 ×] [Tab 3 ×]        [+]            │  ← GtkNotebook tab strip
+├──────────────────────────────────────────────────────┤
+│  [☰]  https://example.com____________                │  ← per-tab toolbar
+├──────────────────────────────────────────────────────┤
+│                                                      │
+│              WebKitWebView                           │  ← per-tab webview
+│                                                      │
+└──────────────────────────────────────────────────────┘
+```
+
+### Tab label widget (composite)
+
+Each tab label is a horizontal `GtkBox`:
+```
+[favicon] [Title text…] [×]
+```
+- Favicon: placeholder icon for now (can be wired to WebKit favicon later)
+- Title: `GtkLabel` with ellipsize end, max width ~150px
+- Close button: `GtkButton` with `window-close-symbolic` icon, only shown if
+  `settings.show_tab_close_buttons` is true
+
+### Right-click context menu on tab label
+
+- New Tab
+- Close Tab
+- Close Other Tabs
+- Close Tabs to the Right
+- Duplicate Tab
+- Reload Tab
+
+### Drag reordering
+
+`GtkNotebook` supports drag reordering natively via
+`gtk_notebook_set_tab_reorderable(notebook, child, TRUE)`. Enabled when
+`settings.tab_drag_reorder` is true.
+
+## Keyboard shortcuts
+
+| Shortcut | Action |
+|----------|--------|
+| Ctrl+T | New tab |
+| Ctrl+W | Close active tab |
+| Ctrl+Tab | Next tab |
+| Ctrl+Shift+Tab | Previous tab |
+| Ctrl+PageUp | Previous tab |
+| Ctrl+PageDown | Next tab |
+| Ctrl+L | Focus URL bar of active tab |
+
+## Session restore
+
+On startup, if `settings.restore_session` is true and
+`~/.sovereign_browser/session.txt` exists and is non-empty, each line is
+loaded as a tab URL. If the file is missing or empty, a single tab is opened
+with the start URL (from command-line arg or `settings.new_tab_url`).
+
+On window destroy, before `gtk_main_quit()`, the list of open tab URLs is
+written to `~/.sovereign_browser/session.txt`.
+
+## Settings UI
+
+A new menu item "Settings…" in the hamburger menu opens a native GTK dialog
+(not a web page, to keep it simple and avoid bootstrapping a
+`sovereign://settings` renderer). The dialog has checkboxes and a text entry
+for each configurable option. On "OK", `settings_save()` is called and
+applicable changes (like tab bar position) are applied live.
+
+## Implementation order
+
+1. **settings.c/h** — foundation, no UI yet, just load/save + global singleton
+2. **tab_manager.c/h** — core notebook management, per-tab page creation,
+   tab label widget, new/close/switch
+3. **session.c/h** — save/restore using tab_manager API
+4. **main.c refactor** — wire up tab_manager, move context setup, rewire
+   callbacks to use active tab
+5. **Tab interactions** — middle-click close, right-click menu, drag reorder
+6. **Keyboard shortcuts** — window-level key-press handler
+7. **Session save/restore** — integrate into startup and destroy
+8. **Settings dialog** — GTK dialog wired to settings module
+9. **Makefile + docs** — build and documentation updates
--- a/src/login_dialog.c
+++ b/src/login_dialog.c
@@ -732,7 +732,7 @@ static void on_transport_changed(GtkComboBox *combo, gpointer user_data) {
            gtk_widget_hide(enum_btn);
            gtk_widget_hide(service_box);
            break;
-        case 3: /* Qubes qrexec */
+        case 3: /* Other Qube (Qubes qrexec) */
            gtk_label_set_text(GTK_LABEL(device_label), "Target Qube:");
            gtk_entry_set_placeholder_text(GTK_ENTRY(device_entry), "nostr_signer");
            /* Set default value so the user doesn't need to type it. */
@@ -954,21 +954,26 @@ static GtkWidget *create_nsigner_screen(login_ctx_t *ctx) {
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(transport_combo), "USB Serial");
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(transport_combo), "UNIX Socket");
    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(transport_combo), "TCP");
-    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(transport_combo), "Qubes qrexec");
-    gtk_combo_box_set_active(GTK_COMBO_BOX(transport_combo), 0);
+    gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(transport_combo), "Other Qube");
+    gtk_combo_box_set_active(GTK_COMBO_BOX(transport_combo), 3);
    gtk_box_pack_start(GTK_BOX(transport_box), transport_combo, FALSE, FALSE, 0);

-    /* Device path entry — label and placeholder adapt to transport type. */
-    GtkWidget *device_label = gtk_label_new("Device Path:");
+    /* Device path entry — label and placeholder adapt to transport type.
+     * Default transport is "Other Qube" (qrexec), so initial UI reflects
+     * that. The on_transport_changed callback updates these when the user
+     * switches transport. */
+    GtkWidget *device_label = gtk_label_new("Target Qube:");
    gtk_widget_set_halign(device_label, GTK_ALIGN_START);
    gtk_box_pack_start(GTK_BOX(box), device_label, FALSE, FALSE, 0);

    GtkWidget *device_entry = gtk_entry_new();
-    gtk_entry_set_placeholder_text(GTK_ENTRY(device_entry), "/dev/ttyACM0");
+    gtk_entry_set_text(GTK_ENTRY(device_entry), "nostr_signer");
+    gtk_entry_set_placeholder_text(GTK_ENTRY(device_entry), "nostr_signer");
    gtk_entry_set_width_chars(GTK_ENTRY(device_entry), 40);
    gtk_box_pack_start(GTK_BOX(box), device_entry, FALSE, FALSE, 0);

-    /* Enumerate serial devices button (only shown for serial transport). */
+    /* Enumerate serial devices button (only shown for serial transport).
+     * Hidden by default since qrexec is the default transport. */
    GtkWidget *enum_btn = gtk_button_new_with_label("Detect Serial Devices");
 #if defined(NOSTR_ENABLE_NSIGNER_CLIENT)
    g_signal_connect(enum_btn, "clicked", G_CALLBACK(on_detect_serial), device_entry);
@@ -976,6 +981,7 @@ static GtkWidget *create_nsigner_screen(login_ctx_t *ctx) {
    gtk_widget_set_sensitive(enum_btn, FALSE);
 #endif
    gtk_box_pack_start(GTK_BOX(box), enum_btn, FALSE, FALSE, 0);
+    gtk_widget_hide(enum_btn);

    /* Service name field (only shown for qrexec transport). */
    GtkWidget *service_box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 8);
@@ -989,8 +995,8 @@ static GtkWidget *create_nsigner_screen(login_ctx_t *ctx) {
    gtk_entry_set_width_chars(GTK_ENTRY(service_entry), 30);
    gtk_box_pack_start(GTK_BOX(service_box), service_entry, FALSE, FALSE, 0);

-    /* Initially hide the service field (serial is the default transport). */
-    gtk_widget_hide(service_box);
+    /* Show the service field by default (qrexec is the default transport). */
+    gtk_widget_show_all(service_box);

    /* Connect transport change callback to update the UI dynamically. */
    g_signal_connect(transport_combo, "changed",
--- a/src/main.c
+++ b/src/main.c
@@ -1,15 +1,25 @@
 /*
 * sovereign_browser — WebKitGTK + C99
 *
- * Minimal browser: a GTK window with a URL entry, a hamburger menu, and a
- * WebKitWebView. Type a URL, press Enter, the page loads. The hamburger
- * menu to the left of the URL bar exposes roadmap actions (reload, security
- * strip toggle, FIPS, Nostr signing) as placeholders to wire up next.
+ * Multi-tab browser: a GTK window with a GtkNotebook tab strip. Each tab
+ * has its own toolbar (hamburger menu + URL entry) and WebKitWebView. All
+ * webviews share a single WebKitWebContext so the sovereign:// Nostr bridge,
+ * security settings, and TLS policy apply to every tab.
 *
 * On startup, a Nostr login dialog is shown. The user signs in with a local
 * key (nsec), seed phrase, read-only npub, NIP-46 remote signer, or n_signer
- * hardware. The resulting nostr_signer_t is held globally and will be used
- * to inject window.nostr into every page (Phase 2).
+ * hardware. The resulting nostr_signer_t is held globally and backs the
+ * window.nostr injection in every tab.
+ *
+ * Features:
+ *   - Tab creation (Ctrl+T, + button), closing (Ctrl+W, close button,
+ *     middle-click)
+ *   - Tab switching (Ctrl+Tab, Ctrl+Shift+Tab, Ctrl+PageUp/Down)
+ *   - Right-click tab context menu (New, Close, Close Others, Close to
+ *     Right, Duplicate, Reload)
+ *   - Tab drag reordering
+ *   - Session save/restore (configurable in Settings)
+ *   - Settings dialog (tab preferences, persisted to disk)
 *
 * Build: make. Run: ./sovereign_browser [url]
 */
@@ -27,11 +37,15 @@
 #include "nostr_bridge.h"
 #include "nostr_inject.h"
 #include "history.h"
+#include "settings.h"
+#include "tab_manager.h"
+#include "session.h"
 #include "nostr_core/nostr_core.h"

 /* ---- Global state --------------------------------------------------- *
 * The signer is created at login and held for the lifetime of the session.
- * Phase 2 will use it to back the window.nostr injection.
+ * It backs the window.nostr injection in every tab via the sovereign://
+ * URI scheme bridge.
 */

 typedef struct {
@@ -42,57 +56,21 @@ typedef struct {
 } app_state_t;

 static app_state_t g_state = {0};
+static GtkWindow  *g_window = NULL;

-/* ---- Menu action callbacks ------------------------------------------- */
+/* ---- Menu proxy functions ------------------------------------------- *
+ * These wrap the app_state_t-aware callbacks so they match GTK signal
+ * handler signatures and can be called from tab_manager.c's hamburger
+ * menu builder.
+ */

-static void on_menu_reload(GtkMenuItem *item, WebKitWebView *webview) {
-    (void)item;
-    if (webview != NULL) {
-        webkit_web_view_reload_bypass_cache(webview);
-    }
-}
-
-static void on_menu_stop(GtkMenuItem *item, WebKitWebView *webview) {
-    (void)item;
-    if (webview != NULL) {
-        webkit_web_view_stop_loading(webview);
-    }
-}
-
-static void on_menu_security_strip(GtkMenuItem *item, gpointer data) {
-    (void)data;
-    gboolean active = gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(item));
-    g_print("[menu] security strip: %s\n", active ? "ON" : "OFF");
-}
-
-static void on_menu_fips(GtkMenuItem *item, gpointer data) {
-    (void)item;
-    (void)data;
-    g_print("[menu] FIPS URI scheme: not yet implemented (roadmap)\n");
-}
-
-static void on_menu_nostr_sign(GtkMenuItem *item, gpointer data) {
-    (void)item;
-    (void)data;
-    if (g_state.signer) {
-        g_print("[menu] Nostr signing: signer active, pubkey=%s\n",
-                g_state.pubkey_hex);
-    } else if (g_state.readonly) {
-        g_print("[menu] Nostr signing: read-only mode (no signer)\n");
-    } else {
-        g_print("[menu] Nostr signing: no signer loaded\n");
-    }
-}
-
-/* Show the login dialog again (switch identity / re-auth). */
-static void on_menu_switch_identity(GtkMenuItem *item, gpointer data) {
+void app_menu_switch_identity_proxy(GtkMenuItem *item, gpointer data) {
    (void)item;
    GtkWindow *window = GTK_WINDOW(data);
    if (window == NULL) return;

    login_result_t result;
    if (login_dialog_run(window, &result) == 0) {
-        /* Free the old signer. */
        if (g_state.signer) {
            nostr_signer_free(g_state.signer);
        }
@@ -102,7 +80,6 @@ static void on_menu_switch_identity(GtkMenuItem *item, gpointer data) {
        g_state.pubkey_hex[64] = '\0';
        g_state.readonly = (result.method == KEY_STORE_METHOD_READONLY);

-        /* Update the bridge so window.nostr uses the new signer. */
        nostr_bridge_set_signer(g_state.signer, g_state.pubkey_hex,
                                 g_state.readonly);

@@ -111,7 +88,19 @@ static void on_menu_switch_identity(GtkMenuItem *item, gpointer data) {
    }
 }

-static void on_menu_logout(GtkMenuItem *item, gpointer data) {
+void app_menu_lock_session_proxy(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    if (g_state.signer) {
+        nostr_signer_free(g_state.signer);
+        g_state.signer = NULL;
+    }
+    g_state.readonly = TRUE;
+    nostr_bridge_set_signer(NULL, g_state.pubkey_hex, TRUE);
+    g_print("[identity] session locked (signer cleared, identity preserved)\n");
+}
+
+void app_menu_logout_proxy(GtkMenuItem *item, gpointer data) {
    (void)item;
    (void)data;
    if (g_state.signer) {
@@ -125,12 +114,36 @@ static void on_menu_logout(GtkMenuItem *item, gpointer data) {
    g_print("[identity] logged out\n");
 }

-static void on_menu_about(GtkMenuItem *item, gpointer data) {
+void app_menu_security_strip_proxy(GtkCheckMenuItem *item, gpointer data) {
+    (void)data;
+    gboolean active = gtk_check_menu_item_get_active(item);
+    g_print("[menu] security strip: %s\n", active ? "ON" : "OFF");
+}
+
+void app_menu_fips_proxy(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    g_print("[menu] FIPS URI scheme: not yet implemented (roadmap)\n");
+}
+
+void app_menu_nostr_sign_proxy(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    if (g_state.signer) {
+        g_print("[menu] Nostr signing: signer active, pubkey=%s\n",
+                g_state.pubkey_hex);
+    } else if (g_state.readonly) {
+        g_print("[menu] Nostr signing: read-only mode (no signer)\n");
+    } else {
+        g_print("[menu] Nostr signing: no signer loaded\n");
+    }
+}
+
+void app_menu_about_proxy(GtkMenuItem *item, gpointer data) {
    (void)item;
    GtkWidget *window = GTK_WIDGET(data);
-    if (window == NULL) {
-        return;
-    }
+    if (window == NULL) return;
+
    GtkWidget *dialog = gtk_message_dialog_new(
        GTK_WINDOW(window),
        GTK_DIALOG_DESTROY_WITH_PARENT,
@@ -143,306 +156,240 @@ static void on_menu_about(GtkMenuItem *item, gpointer data) {
    gtk_widget_show_all(dialog);
 }

-/* Toggle the WebKit Web Inspector. */
-static void on_menu_inspector(GtkMenuItem *item, gpointer data) {
-    (void)item;
-    WebKitWebView *webview = WEBKIT_WEB_VIEW(data);
-    if (webview == NULL) return;
+/* ---- Settings dialog ------------------------------------------------ */

-    WebKitWebInspector *inspector = webkit_web_view_get_inspector(webview);
-    if (inspector == NULL) return;
+static void on_settings_dialog_response(GtkDialog *dialog, gint response_id,
+                                         gpointer user_data) {
+    (void)user_data;
+    if (response_id == GTK_RESPONSE_ACCEPT) {
+        browser_settings_t *s = settings_get_mutable();

-    /* Just show the inspector — WebKitGTK handles the toggle. */
-    webkit_web_inspector_show(inspector);
-}
+        /* Read the widgets by name from the dialog's content area. */
+        GtkWidget *content = gtk_dialog_get_content_area(dialog);
+        GList *children = gtk_container_get_children(GTK_CONTAINER(content));
+        for (GList *l = children; l != NULL; l = l->next) {
+            GtkWidget *child = GTK_WIDGET(l->data);
+            const char *name = gtk_widget_get_name(child);
+            if (name == NULL) continue;

-/* History item callback: load the URL from the menu item label. */
-static void on_menu_history_item(GtkMenuItem *item, gpointer data) {
-    WebKitWebView *webview = WEBKIT_WEB_VIEW(data);
-    if (webview == NULL || item == NULL) return;
-    const char *url = gtk_menu_item_get_label(item);
-    if (url && url[0]) {
-        webkit_web_view_load_uri(webview, url);
-    }
-}
-
-/* Clear history callback. */
-static void on_menu_history_clear(GtkMenuItem *item, gpointer data) {
-    (void)item;
-    (void)data;
-    history_clear();
-    g_print("[history] cleared\n");
-}
-
-/* Rebuild the history submenu when it's shown (so it's always current). */
-static void on_history_menu_show(GtkWidget *menu, gpointer user_data) {
-    WebKitWebView *webview = WEBKIT_WEB_VIEW(user_data);
-
-    /* Remove all existing items. */
-    GList *children = gtk_container_get_children(GTK_CONTAINER(menu));
-    for (GList *l = children; l != NULL; l = l->next) {
-        gtk_widget_destroy(GTK_WIDGET(l->data));
-    }
-    g_list_free(children);
-
-    /* Rebuild with current history. */
-    int hcount = history_count();
-    if (hcount == 0) {
-        GtkWidget *empty = gtk_menu_item_new_with_label("(no recent pages)");
-        gtk_widget_set_sensitive(empty, FALSE);
-        gtk_menu_shell_append(GTK_MENU_SHELL(menu), empty);
-    } else {
-        int show = hcount < 20 ? hcount : 20;
-        for (int i = 0; i < show; i++) {
-            const char *url = history_get(i);
-            if (url == NULL) break;
-            char label[80];
-            if (strlen(url) > 75) {
-                snprintf(label, sizeof(label), "%.72s...", url);
-            } else {
-                snprintf(label, sizeof(label), "%s", url);
+            if (strcmp(name, "restore_session") == 0) {
+                s->restore_session = gtk_toggle_button_get_active(
+                    GTK_TOGGLE_BUTTON(child));
+            } else if (strcmp(name, "new_tab_url") == 0) {
+                const char *text = gtk_entry_get_text(GTK_ENTRY(child));
+                snprintf(s->new_tab_url, sizeof(s->new_tab_url), "%s", text);
+            } else if (strcmp(name, "show_tab_close_buttons") == 0) {
+                s->show_tab_close_buttons = gtk_toggle_button_get_active(
+                    GTK_TOGGLE_BUTTON(child));
+            } else if (strcmp(name, "middle_click_close") == 0) {
+                s->middle_click_close = gtk_toggle_button_get_active(
+                    GTK_TOGGLE_BUTTON(child));
+            } else if (strcmp(name, "ctrl_tab_switch") == 0) {
+                s->ctrl_tab_switch = gtk_toggle_button_get_active(
+                    GTK_TOGGLE_BUTTON(child));
+            } else if (strcmp(name, "tab_drag_reorder") == 0) {
+                s->tab_drag_reorder = gtk_toggle_button_get_active(
+                    GTK_TOGGLE_BUTTON(child));
+            } else if (strcmp(name, "max_tabs") == 0) {
+                const char *text = gtk_entry_get_text(GTK_ENTRY(child));
+                s->max_tabs = atoi(text);
+                if (s->max_tabs < 1) s->max_tabs = 1;
+            } else if (strcmp(name, "tab_bar_position") == 0) {
+                gint active = gtk_combo_box_get_active(GTK_COMBO_BOX(child));
+                switch (active) {
+                    case 0: s->tab_bar_position = GTK_POS_TOP; break;
+                    case 1: s->tab_bar_position = GTK_POS_BOTTOM; break;
+                    case 2: s->tab_bar_position = GTK_POS_LEFT; break;
+                    case 3: s->tab_bar_position = GTK_POS_RIGHT; break;
+                }
            }
-            GtkWidget *hitem = gtk_menu_item_new_with_label(label);
-            gtk_widget_set_tooltip_text(hitem, url);
-            g_signal_connect(hitem, "activate",
-                             G_CALLBACK(on_menu_history_item), webview);
-            gtk_menu_shell_append(GTK_MENU_SHELL(menu), hitem);
        }
-        gtk_menu_shell_append(GTK_MENU_SHELL(menu),
-                              gtk_separator_menu_item_new());
-        GtkWidget *clear_item = gtk_menu_item_new_with_label("Clear Recents");
-        g_signal_connect(clear_item, "activate",
-                         G_CALLBACK(on_menu_history_clear), NULL);
-        gtk_menu_shell_append(GTK_MENU_SHELL(menu), clear_item);
-    }
+        g_list_free(children);

-    gtk_widget_show_all(menu);
+        settings_save();
+        tab_manager_apply_settings();
+        g_print("[settings] Saved\n");
+    }
+    gtk_widget_destroy(GTK_WIDGET(dialog));
 }

-/* Open a local file via file chooser dialog. */
-static void on_menu_open_file(GtkMenuItem *item, gpointer data) {
+void on_menu_settings(GtkMenuItem *item, gpointer data) {
    (void)item;
    GtkWindow *window = GTK_WINDOW(data);
    if (window == NULL) return;

-    GtkWidget *dialog = gtk_file_chooser_dialog_new(
-        "Open File",
-        window,
-        GTK_FILE_CHOOSER_ACTION_OPEN,
+    const browser_settings_t *s = settings_get();
+
+    GtkWidget *dialog = gtk_dialog_new_with_buttons(
+        "Settings", window,
+        GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
        "_Cancel", GTK_RESPONSE_CANCEL,
-        "_Open", GTK_RESPONSE_ACCEPT,
+        "_OK", GTK_RESPONSE_ACCEPT,
        NULL);
+    gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);

-    GtkFileFilter *filter_html = gtk_file_filter_new();
-    gtk_file_filter_set_name(filter_html, "HTML files");
-    gtk_file_filter_add_pattern(filter_html, "*.html");
-    gtk_file_filter_add_pattern(filter_html, "*.htm");
-    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter_html);
+    GtkWidget *content = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+    gtk_container_set_border_width(GTK_CONTAINER(content), 12);
+    GtkBox *vbox = GTK_BOX(content);

-    GtkFileFilter *filter_all = gtk_file_filter_new();
-    gtk_file_filter_set_name(filter_all, "All files");
-    gtk_file_filter_add_pattern(filter_all, "*");
-    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter_all);
+    /* Restore session checkbox. */
+    GtkWidget *cb_restore = gtk_check_button_new_with_label(
+        "Restore session on startup");
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cb_restore),
+                                  s->restore_session);
+    gtk_widget_set_name(cb_restore, "restore_session");
+    gtk_box_pack_start(vbox, cb_restore, FALSE, FALSE, 4);

-    if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
-        char *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
-        char *uri = g_strdup_printf("file://%s", filename);
-        /* Get the web view from the window's data. */
-        WebKitWebView *webview = g_object_get_data(G_OBJECT(window), "webview");
-        if (webview) {
-            webkit_web_view_load_uri(webview, uri);
-        }
-        g_free(uri);
-        g_free(filename);
+    /* New tab URL entry. */
+    GtkWidget *lbl_url = gtk_label_new("New tab URL:");
+    gtk_widget_set_halign(lbl_url, GTK_ALIGN_START);
+    gtk_box_pack_start(vbox, lbl_url, FALSE, FALSE, 4);
+    GtkWidget *entry_url = gtk_entry_new();
+    gtk_entry_set_text(GTK_ENTRY(entry_url), s->new_tab_url);
+    gtk_widget_set_name(entry_url, "new_tab_url");
+    gtk_box_pack_start(vbox, entry_url, FALSE, FALSE, 4);
+
+    /* Tab bar position combo. */
+    GtkWidget *lbl_pos = gtk_label_new("Tab bar position:");
+    gtk_widget_set_halign(lbl_pos, GTK_ALIGN_START);
+    gtk_box_pack_start(vbox, lbl_pos, FALSE, FALSE, 4);
+    GtkWidget *combo_pos = gtk_combo_box_text_new();
+    gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(combo_pos), NULL, "Top");
+    gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(combo_pos), NULL, "Bottom");
+    gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(combo_pos), NULL, "Left");
+    gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(combo_pos), NULL, "Right");
+    int pos_active = 0;
+    switch (s->tab_bar_position) {
+        case GTK_POS_TOP:    pos_active = 0; break;
+        case GTK_POS_BOTTOM: pos_active = 1; break;
+        case GTK_POS_LEFT:   pos_active = 2; break;
+        case GTK_POS_RIGHT:  pos_active = 3; break;
    }
-    gtk_widget_destroy(dialog);
+    gtk_combo_box_set_active(GTK_COMBO_BOX(combo_pos), pos_active);
+    gtk_widget_set_name(combo_pos, "tab_bar_position");
+    gtk_box_pack_start(vbox, combo_pos, FALSE, FALSE, 4);
+
+    /* Show tab close buttons. */
+    GtkWidget *cb_close_btn = gtk_check_button_new_with_label(
+        "Show tab close buttons");
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cb_close_btn),
+                                  s->show_tab_close_buttons);
+    gtk_widget_set_name(cb_close_btn, "show_tab_close_buttons");
+    gtk_box_pack_start(vbox, cb_close_btn, FALSE, FALSE, 4);
+
+    /* Middle-click to close. */
+    GtkWidget *cb_mid_click = gtk_check_button_new_with_label(
+        "Middle-click to close tab");
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cb_mid_click),
+                                  s->middle_click_close);
+    gtk_widget_set_name(cb_mid_click, "middle_click_close");
+    gtk_box_pack_start(vbox, cb_mid_click, FALSE, FALSE, 4);
+
+    /* Ctrl+Tab switching. */
+    GtkWidget *cb_ctrl_tab = gtk_check_button_new_with_label(
+        "Ctrl+Tab to switch tabs");
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cb_ctrl_tab),
+                                  s->ctrl_tab_switch);
+    gtk_widget_set_name(cb_ctrl_tab, "ctrl_tab_switch");
+    gtk_box_pack_start(vbox, cb_ctrl_tab, FALSE, FALSE, 4);
+
+    /* Tab drag reordering. */
+    GtkWidget *cb_drag = gtk_check_button_new_with_label(
+        "Allow drag to reorder tabs");
+    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cb_drag),
+                                  s->tab_drag_reorder);
+    gtk_widget_set_name(cb_drag, "tab_drag_reorder");
+    gtk_box_pack_start(vbox, cb_drag, FALSE, FALSE, 4);
+
+    /* Max tabs. */
+    GtkWidget *lbl_max = gtk_label_new("Maximum tabs:");
+    gtk_widget_set_halign(lbl_max, GTK_ALIGN_START);
+    gtk_box_pack_start(vbox, lbl_max, FALSE, FALSE, 4);
+    GtkWidget *entry_max = gtk_entry_new();
+    char max_str[16];
+    snprintf(max_str, sizeof(max_str), "%d", s->max_tabs);
+    gtk_entry_set_text(GTK_ENTRY(entry_max), max_str);
+    gtk_widget_set_name(entry_max, "max_tabs");
+    gtk_box_pack_start(vbox, entry_max, FALSE, FALSE, 4);
+
+    g_signal_connect(dialog, "response",
+                     G_CALLBACK(on_settings_dialog_response), NULL);
+
+    gtk_widget_show_all(dialog);
 }

-/* Lock session: clear the signer but keep the saved identity.
- * The user will need to re-authenticate (switch identity) to sign again. */
-static void on_menu_lock_session(GtkMenuItem *item, gpointer data) {
-    (void)item;
+/* ---- Keyboard shortcuts --------------------------------------------- */
+
+static gboolean on_key_press(GtkWidget *widget, GdkEventKey *event,
+                              gpointer data) {
+    (void)widget;
    (void)data;
-    if (g_state.signer) {
-        nostr_signer_free(g_state.signer);
-        g_state.signer = NULL;
+
+    const browser_settings_t *s = settings_get();
+    guint mods = event->state & gtk_accelerator_get_default_mod_mask();
+
+    /* Ctrl+T — new tab. */
+    if ((mods & GDK_CONTROL_MASK) && event->keyval == GDK_KEY_t) {
+        tab_manager_new_tab(NULL);
+        return TRUE;
    }
-    g_state.readonly = TRUE;  /* no signing until re-auth */
-    nostr_bridge_set_signer(NULL, g_state.pubkey_hex, TRUE);
-    g_print("[identity] session locked (signer cleared, identity preserved)\n");
-}

-/* Build the hamburger menu. */
-static GtkWidget *build_hamburger_menu(GtkWidget *window,
-                                       WebKitWebView *webview) {
-    GtkWidget *menu = gtk_menu_new();
-
-    /* Navigation group. */
-    GtkWidget *item_open   = gtk_menu_item_new_with_label("Open File…");
-    GtkWidget *item_reload = gtk_menu_item_new_with_label("Reload");
-    GtkWidget *item_stop   = gtk_menu_item_new_with_label("Stop");
-    g_signal_connect(item_open, "activate", G_CALLBACK(on_menu_open_file),
-                     window);
-    g_signal_connect(item_reload, "activate", G_CALLBACK(on_menu_reload),
-                     webview);
-    g_signal_connect(item_stop, "activate", G_CALLBACK(on_menu_stop), webview);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_open);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_reload);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_stop);
-
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
-                          gtk_separator_menu_item_new());
-
-    /* Recents submenu — rebuilt dynamically each time it's shown. */
-    GtkWidget *history_menu = gtk_menu_new();
-    g_signal_connect(history_menu, "show", G_CALLBACK(on_history_menu_show),
-                     webview);
-
-    GtkWidget *item_history = gtk_menu_item_new_with_label("Recents");
-    gtk_menu_item_set_submenu(GTK_MENU_ITEM(item_history), history_menu);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_history);
-
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
-                          gtk_separator_menu_item_new());
-
-    /* Identity group — show current identity status. */
-    char identity_label[80];
-    const char *method_name = "none";
-    switch (g_state.method) {
-        case KEY_STORE_METHOD_LOCAL:    method_name = "local"; break;
-        case KEY_STORE_METHOD_SEED:     method_name = "seed"; break;
-        case KEY_STORE_METHOD_READONLY: method_name = "readonly"; break;
-        case KEY_STORE_METHOD_NIP46:    method_name = "nip46"; break;
-        case KEY_STORE_METHOD_NSIGNER:  method_name = "nsigner"; break;
-        default: break;
+    /* Ctrl+W — close active tab. */
+    if ((mods & GDK_CONTROL_MASK) && event->keyval == GDK_KEY_w) {
+        tab_manager_close_active();
+        return TRUE;
    }
-    if (g_state.pubkey_hex[0]) {
-        /* Show first 8 chars of pubkey for identification. */
-        char short_pubkey[12];
-        memcpy(short_pubkey, g_state.pubkey_hex, 8);
-        short_pubkey[8] = '\0';
-        snprintf(identity_label, sizeof(identity_label),
-                 "Identity: %s… (%s)", short_pubkey, method_name);
-    } else {
-        snprintf(identity_label, sizeof(identity_label), "Identity: none");
-    }
-    GtkWidget *item_identity = gtk_menu_item_new_with_label(identity_label);
-    gtk_widget_set_sensitive(item_identity, FALSE);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_identity);

-    GtkWidget *item_switch = gtk_menu_item_new_with_label("Switch Identity…");
-    GtkWidget *item_lock   = gtk_menu_item_new_with_label("Lock Session");
-    GtkWidget *item_logout = gtk_menu_item_new_with_label("Logout");
-    g_signal_connect(item_switch, "activate", G_CALLBACK(on_menu_switch_identity),
-                     window);
-    g_signal_connect(item_lock, "activate", G_CALLBACK(on_menu_lock_session), NULL);
-    g_signal_connect(item_logout, "activate", G_CALLBACK(on_menu_logout), NULL);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_switch);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_lock);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_logout);
-
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
-                          gtk_separator_menu_item_new());
-
-    /* Roadmap group. */
-    GtkWidget *item_security =
-        gtk_check_menu_item_new_with_label("Security strip (SOP/CORS/certs)");
-    gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item_security), FALSE);
-    g_signal_connect(item_security, "toggled",
-                     G_CALLBACK(on_menu_security_strip), NULL);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_security);
-
-    GtkWidget *item_fips  = gtk_menu_item_new_with_label("FIPS URI scheme…");
-    GtkWidget *item_nostr = gtk_menu_item_new_with_label("Nostr signing status");
-    g_signal_connect(item_fips, "activate", G_CALLBACK(on_menu_fips), NULL);
-    g_signal_connect(item_nostr, "activate", G_CALLBACK(on_menu_nostr_sign),
-                     NULL);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_fips);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_nostr);
-
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
-                          gtk_separator_menu_item_new());
-
-    GtkWidget *item_inspector = gtk_menu_item_new_with_label("Toggle Inspector");
-    g_signal_connect(item_inspector, "activate", G_CALLBACK(on_menu_inspector),
-                     webview);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_inspector);
-
-    GtkWidget *item_about = gtk_menu_item_new_with_label("About");
-    g_signal_connect(item_about, "activate", G_CALLBACK(on_menu_about),
-                     window);
-    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_about);
-
-    gtk_widget_show_all(menu);
-
-    GtkWidget *button = gtk_menu_button_new();
-    gtk_menu_button_set_popup(GTK_MENU_BUTTON(button), menu);
-    gtk_button_set_image(
-        GTK_BUTTON(button),
-        gtk_image_new_from_icon_name("open-menu-symbolic",
-                                     GTK_ICON_SIZE_BUTTON));
-    gtk_widget_set_tooltip_text(button, "Menu");
-    return button;
-}
-
-/* Normalize a bare string into a loadable URL. */
-static char *normalize_url(const char *input) {
-    if (input == NULL || input[0] == '\0') {
-        return NULL;
-    }
-    if (strstr(input, "://") != NULL) {
-        return g_strdup(input);
-    }
-    return g_strdup_printf("https://%s", input);
-}
-
-static void on_url_activate(GtkEntry *entry, WebKitWebView *webview) {
-    const char *text = gtk_entry_get_text(entry);
-    char *url = normalize_url(text);
-    if (url != NULL) {
-        webkit_web_view_load_uri(webview, url);
-        g_free(url);
-    }
-}
-
-static void on_load_changed(WebKitWebView *webview,
-                            WebKitLoadEvent load_event,
-                            GtkEntry *url_entry) {
-    if (load_event == WEBKIT_LOAD_COMMITTED) {
-        const gchar *uri = webkit_web_view_get_uri(webview);
-        if (uri != NULL) {
-            gtk_entry_set_text(url_entry, uri);
+    /* Ctrl+L — focus URL bar of active tab. */
+    if ((mods & GDK_CONTROL_MASK) && event->keyval == GDK_KEY_l) {
+        tab_info_t *tab = tab_manager_get_active();
+        if (tab && tab->url_entry) {
+            gtk_widget_grab_focus(tab->url_entry);
+            gtk_editable_select_region(GTK_EDITABLE(tab->url_entry), 0, -1);
        }
-    } else if (load_event == WEBKIT_LOAD_FINISHED) {
-        const gchar *title = webkit_web_view_get_title(webview);
-        const gchar *uri = webkit_web_view_get_uri(webview);
-        g_print("[loaded] %s -- title: %s\n",
-                uri ? uri : "(null)",
-                (title && title[0]) ? title : "(none)");
-        /* Add to history on successful page load. */
-        if (uri != NULL && uri[0] != '\0') {
-            history_add(uri);
+        return TRUE;
+    }
+
+    /* Ctrl+Tab / Ctrl+Shift+Tab — cycle tabs. */
+    if (s->ctrl_tab_switch && (mods & GDK_CONTROL_MASK)) {
+        if (event->keyval == GDK_KEY_Tab) {
+            if (mods & GDK_SHIFT_MASK) {
+                tab_manager_prev();
+            } else {
+                tab_manager_next();
+            }
+            return TRUE;
+        }
+        if (event->keyval == GDK_KEY_ISO_Left_Tab) {
+            tab_manager_prev();
+            return TRUE;
        }
    }
-}

-static gboolean on_load_failed(WebKitWebView *webview,
-                               WebKitLoadEvent load_event,
-                               gchar *failing_uri,
-                               GError *error,
-                               gpointer data) {
-    (void)webview;
-    (void)load_event;
-    (void)data;
-    g_print("[failed] %s -- %s\n",
-            failing_uri ? failing_uri : "(null)",
-            error ? error->message : "(unknown)");
+    /* Ctrl+PageDown — next tab. */
+    if ((mods & GDK_CONTROL_MASK) && event->keyval == GDK_KEY_Page_Down) {
+        tab_manager_next();
+        return TRUE;
+    }
+
+    /* Ctrl+PageUp — previous tab. */
+    if ((mods & GDK_CONTROL_MASK) && event->keyval == GDK_KEY_Page_Up) {
+        tab_manager_prev();
+        return TRUE;
+    }
+
    return FALSE;
 }

+/* ---- Window destroy ------------------------------------------------- */
+
 static void on_window_destroy(GtkWidget *widget, gpointer data) {
    (void)widget;
    (void)data;
+
+    /* Save the session before cleanup. */
+    session_save();
+
    if (g_state.signer) {
        nostr_signer_free(g_state.signer);
        g_state.signer = NULL;
@@ -451,22 +398,17 @@ static void on_window_destroy(GtkWidget *widget, gpointer data) {
    gtk_main_quit();
 }

-/* ---- Login flow ------------------------------------------------------ *
- * Try to restore a saved identity. If none, show the login dialog.
- * Returns 0 on success (signer or readonly loaded), -1 if user cancelled.
- */
+/* ---- Login flow ----------------------------------------------------- */
+
 static int do_login(GtkWindow *parent) {
-    /* Initialize nostr_core_lib. */
    if (nostr_init() != NOSTR_SUCCESS) {
        g_printerr("[login] Failed to initialize nostr_core_lib\n");
        return -1;
    }

-    /* Show the login dialog every time — no plaintext key persistence.
-     * Encrypted key storage will be added in a future phase. */
    login_result_t result;
    if (login_dialog_run(parent, &result) != 0) {
-        return -1;  /* cancelled */
+        return -1;
    }

    g_state.signer = result.signer;
@@ -480,127 +422,87 @@ static int do_login(GtkWindow *parent) {
    return 0;
 }

-/* ---- Main ------------------------------------------------------------ */
+/* ---- Main ----------------------------------------------------------- */

 int main(int argc, char **argv) {
-    /* Ignore SIGPIPE — n_signer transports (qrexec, unix, tcp) may close
-     * pipes abruptly, and we don't want that to kill the browser. */
    (void)signal(SIGPIPE, SIG_IGN);

    gtk_init(&argc, &argv);

-    /* Load URL history from disk. */
+    /* Load settings and history from disk. */
+    settings_load();
    history_load();

-    const char *start_url = (argc > 1) ? argv[1] : "https://example.com";
-    char *normalized = normalize_url(start_url);
+    const char *start_url = (argc > 1) ? argv[1] : NULL;

    /* Top-level window. */
    GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title(GTK_WINDOW(window), "sovereign browser " SB_VERSION);
    gtk_window_set_default_size(GTK_WINDOW(window), 1024, 768);
    g_signal_connect(window, "destroy", G_CALLBACK(on_window_destroy), NULL);
+    g_signal_connect(window, "key-press-event", G_CALLBACK(on_key_press), NULL);
+    g_window = GTK_WINDOW(window);

    /* Login before showing the browser. */
-    if (do_login(GTK_WINDOW(window)) != 0) {
-        /* User cancelled login — exit without gtk_main_quit (we haven't
-         * entered gtk_main yet, so calling gtk_main_quit would crash). */
+    if (do_login(g_window) != 0) {
        g_print("[login] Cancelled, exiting.\n");
        nostr_cleanup();
        return EXIT_SUCCESS;
    }

-    /* Vertical box: toolbar on top, web view below. */
-    GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
-    gtk_container_add(GTK_CONTAINER(window), vbox);
+    /* Use the default WebKitWebContext — it comes with proper networking
+     * (cookies, cache, soup session) that a freshly created context lacks.
+     * All tabs will create webviews from this shared context. */
+    WebKitWebContext *web_ctx = webkit_web_context_get_default();

-    WebKitWebView *webview = WEBKIT_WEB_VIEW(webkit_web_view_new());
-
-    /* ── Security strip: disable web security restrictions ───────
-     * The "reckless browser" thesis: identity and transport are handled
-     * at a different layer (Nostr keys + FIPS mesh), so the browser's
-     * own security sandbox (CORS, SOP, TLS cert enforcement, mixed
-     * content blocking) gets in the way and is deliberately removed.
-     */
-
-    /* Enable developer extras (Web Inspector) for debugging. */
-    WebKitSettings *settings = webkit_web_view_get_settings(webview);
-    webkit_settings_set_enable_developer_extras(settings, TRUE);
-    webkit_settings_set_enable_javascript(settings, TRUE);
-    webkit_settings_set_javascript_can_open_windows_automatically(settings, TRUE);
-
-    /* Allow file:// pages to access other file:// resources and make
-     * cross-origin requests (needed for our test page to call
-     * sovereign://). */
-    webkit_settings_set_allow_file_access_from_file_urls(settings, TRUE);
-    webkit_settings_set_allow_universal_access_from_file_urls(settings, TRUE);
-
-    /* Disable mixed content blocking — allow HTTP resources on HTTPS
-     * pages (FIPS/nostr:// content may not use TLS). */
-    webkit_settings_set_allow_modal_dialogs(settings, TRUE);
-
-    /* Get the web context for scheme + security manager registration. */
-    WebKitWebContext *web_ctx = webkit_web_view_get_context(webview);
-
-    /* Register sovereign:// as a secure, local, CORS-enabled scheme so
-     * that fetch() from any page can call it without cross-origin
-     * restrictions. */
-    WebKitSecurityManager *sec_mgr = webkit_web_context_get_security_manager(web_ctx);
+    /* ── Security strip: disable web security restrictions ─────── */
+    WebKitSecurityManager *sec_mgr =
+        webkit_web_context_get_security_manager(web_ctx);
    webkit_security_manager_register_uri_scheme_as_secure(sec_mgr, "sovereign");
    webkit_security_manager_register_uri_scheme_as_local(sec_mgr, "sovereign");
-    webkit_security_manager_register_uri_scheme_as_cors_enabled(sec_mgr, "sovereign");
-
-    /* Also register file:// as secure so local pages can call our bridge. */
+    webkit_security_manager_register_uri_scheme_as_cors_enabled(sec_mgr,
+                                                                 "sovereign");
    webkit_security_manager_register_uri_scheme_as_secure(sec_mgr, "file");
    webkit_security_manager_register_uri_scheme_as_local(sec_mgr, "file");

    /* Accept any TLS certificate (FIPS uses Noise IK, not TLS CAs). */
-    WebKitWebsiteDataManager *data_mgr = webkit_web_context_get_website_data_manager(web_ctx);
+    WebKitWebsiteDataManager *data_mgr =
+        webkit_web_context_get_website_data_manager(web_ctx);
    webkit_website_data_manager_set_tls_errors_policy(
        data_mgr, WEBKIT_TLS_ERRORS_POLICY_IGNORE);

-    /* Register the sovereign:// URI scheme for the window.nostr bridge
-     * and browser-internal pages (sovereign://security). */
+    /* Register the sovereign:// URI scheme for the window.nostr bridge. */
    nostr_bridge_register(web_ctx, g_state.signer, g_state.pubkey_hex,
                          g_state.readonly);
-    nostr_bridge_set_security_refs(settings, sec_mgr);

-    /* Inject window.nostr into every page before page scripts run. */
-    nostr_inject_setup(webview);
+    /* Vertical box: the tab manager's notebook fills the window. */
+    GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+    gtk_container_add(GTK_CONTAINER(window), vbox);

-    /* Toolbar: [hamburger] [url entry], horizontal. */
-    GtkWidget *toolbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
-    gtk_widget_set_margin_top(toolbar, 4);
-    gtk_widget_set_margin_bottom(toolbar, 4);
-    gtk_widget_set_margin_start(toolbar, 4);
-    gtk_widget_set_margin_end(toolbar, 4);
-    gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0);
+    /* Initialize the tab manager. */
+    tab_manager_init(GTK_CONTAINER(vbox), web_ctx, g_window);

-    GtkWidget *hamburger = build_hamburger_menu(window, webview);
-    gtk_box_pack_start(GTK_BOX(toolbar), hamburger, FALSE, FALSE, 0);
+    /* Try to restore the previous session. If nothing was restored,
+     * open a single tab with the start URL or the default new-tab URL. */
+    int restored = session_restore();
+    if (restored == 0) {
+        const char *url = start_url;
+        if (url == NULL || url[0] == '\0') {
+            url = settings_get()->new_tab_url;
+        }
+        tab_manager_new_tab(url);
+    }

-    GtkWidget *url_entry = gtk_entry_new();
-    gtk_entry_set_text(GTK_ENTRY(url_entry),
-                       normalized ? normalized : start_url);
-    gtk_box_pack_start(GTK_BOX(toolbar), url_entry, TRUE, TRUE, 0);
-
-    /* Store webview reference on the window for menu callbacks. */
-    g_object_set_data(G_OBJECT(window), "webview", webview);
-
-    gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET(webview), TRUE, TRUE, 0);
-
-    /* Wire signals. */
-    g_signal_connect(url_entry, "activate", G_CALLBACK(on_url_activate),
-                     webview);
-    g_signal_connect(webview, "load-changed", G_CALLBACK(on_load_changed),
-                     url_entry);
-    g_signal_connect(webview, "load-failed", G_CALLBACK(on_load_failed),
-                     NULL);
-
-    /* Load the start URL. */
-    if (normalized != NULL) {
-        webkit_web_view_load_uri(webview, normalized);
-        g_free(normalized);
+    /* Wire the security refs to the first tab's settings (settings are
+     * per-webview, not per-context). The sovereign://security page uses
+     * these to read and toggle security features. */
+    {
+        tab_info_t *first_tab = tab_manager_get(0);
+        if (first_tab && first_tab->webview) {
+            WebKitSettings *settings =
+                webkit_web_view_get_settings(first_tab->webview);
+            nostr_bridge_set_security_refs(settings, sec_mgr);
+        }
    }

    gtk_widget_show_all(window);
--- a/src/session.c
+++ b/src/session.c
@@ -0,0 +1,108 @@
+/*
+ * session.c — tab session save/restore for sovereign_browser
+ *
+ * Saves open tab URLs to ~/.sovereign_browser/session.txt (one per line)
+ * and restores them on startup if settings.restore_session is true.
+ */
+
+#include "session.h"
+#include "settings.h"
+#include "tab_manager.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+
+#define SESSION_URL_MAX 2048
+
+/* ── Path helper ──────────────────────────────────────────────────── */
+
+static int session_path(char *out, size_t out_sz) {
+    const char *home = getenv("HOME");
+    if (home == NULL || home[0] == '\0') {
+        return -1;
+    }
+
+    char dir[512];
+    int n = snprintf(dir, sizeof(dir), "%s/.sovereign_browser", home);
+    if (n < 0 || (size_t)n >= sizeof(dir)) {
+        return -1;
+    }
+    if (mkdir(dir, 0700) != 0 && errno != EEXIST) {
+        return -1;
+    }
+
+    n = snprintf(out, out_sz, "%s/session.txt", dir);
+    if (n < 0 || (size_t)n >= out_sz) {
+        return -1;
+    }
+    return 0;
+}
+
+/* ── Save ─────────────────────────────────────────────────────────── */
+
+void session_save(void) {
+    char path[512];
+    if (session_path(path, sizeof(path)) != 0) {
+        return;
+    }
+
+    FILE *f = fopen(path, "w");
+    if (f == NULL) {
+        return;
+    }
+    fchmod(fileno(f), 0600);
+
+    int count = tab_manager_count();
+    for (int i = 0; i < count; i++) {
+        const char *url = tab_manager_get_url(i);
+        if (url != NULL && url[0] != '\0') {
+            fprintf(f, "%s\n", url);
+        }
+    }
+    fclose(f);
+    g_print("[session] Saved %d tab(s)\n", count);
+}
+
+/* ── Restore ──────────────────────────────────────────────────────── */
+
+int session_restore(void) {
+    const browser_settings_t *s = settings_get();
+    if (!s->restore_session) {
+        return 0;
+    }
+
+    char path[512];
+    if (session_path(path, sizeof(path)) != 0) {
+        return 0;
+    }
+
+    FILE *f = fopen(path, "r");
+    if (f == NULL) {
+        return 0;
+    }
+
+    int restored = 0;
+    char line[SESSION_URL_MAX];
+    while (fgets(line, sizeof(line), f) != NULL) {
+        /* Strip newline. */
+        size_t len = strlen(line);
+        while (len > 0 && (line[len - 1] == '\n' || line[len - 1] == '\r')) {
+            line[--len] = '\0';
+        }
+        if (len == 0) continue;
+
+        int index = tab_manager_new_tab(line);
+        if (index >= 0) {
+            restored++;
+        }
+    }
+    fclose(f);
+
+    g_print("[session] Restored %d tab(s)\n", restored);
+    return restored;
+}
--- a/src/session.h
+++ b/src/session.h
@@ -0,0 +1,35 @@
+/*
+ * session.h — tab session save/restore for sovereign_browser
+ *
+ * Saves the list of open tab URLs to ~/.sovereign_browser/session.txt
+ * on window close, and restores them on startup if settings.restore_session
+ * is true.
+ */
+
+#ifndef SESSION_H
+#define SESSION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Save the current set of open tab URLs to disk.
+ * Called on window destroy (before gtk_main_quit).
+ */
+void session_save(void);
+
+/*
+ * Restore the saved session by creating a tab for each URL in
+ * ~/.sovereign_browser/session.txt.
+ *
+ * Returns the number of tabs created, or 0 if no session was restored
+ * (file missing, empty, or restore_session setting is false).
+ */
+int  session_restore(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SESSION_H */
--- a/src/settings.c
+++ b/src/settings.c
@@ -0,0 +1,201 @@
+/*
+ * settings.c — browser preferences for sovereign_browser
+ *
+ * Persists settings to ~/.sovereign_browser/settings.conf as key=value lines.
+ */
+
+#include "settings.h"
+
+#include <gtk/gtk.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>   /* strcasecmp */
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <unistd.h>
+
+/* ── Global singleton ─────────────────────────────────────────────── */
+
+static browser_settings_t g_settings;
+
+/* ── Defaults ─────────────────────────────────────────────────────── */
+
+static void settings_set_defaults(browser_settings_t *s) {
+    s->restore_session        = TRUE;
+    snprintf(s->new_tab_url, sizeof(s->new_tab_url), "%s",
+             SETTINGS_NEW_TAB_URL_DEFAULT);
+    s->tab_bar_position       = GTK_POS_TOP;
+    s->show_tab_close_buttons = TRUE;
+    s->middle_click_close     = TRUE;
+    s->ctrl_tab_switch        = TRUE;
+    s->max_tabs               = SETTINGS_MAX_TABS_DEFAULT;
+    s->tab_drag_reorder       = TRUE;
+}
+
+/* ── Path helper ──────────────────────────────────────────────────── */
+
+static int settings_path(char *out, size_t out_sz) {
+    const char *home = getenv("HOME");
+    if (home == NULL || home[0] == '\0') {
+        return -1;
+    }
+
+    char dir[512];
+    int n = snprintf(dir, sizeof(dir), "%s/.sovereign_browser", home);
+    if (n < 0 || (size_t)n >= sizeof(dir)) {
+        return -1;
+    }
+    if (mkdir(dir, 0700) != 0 && errno != EEXIST) {
+        return -1;
+    }
+
+    n = snprintf(out, out_sz, "%s/settings.conf", dir);
+    if (n < 0 || (size_t)n >= out_sz) {
+        return -1;
+    }
+    return 0;
+}
+
+/* ── Parsing helpers ──────────────────────────────────────────────── */
+
+static gboolean parse_bool(const char *value, gboolean fallback) {
+    if (value == NULL) return fallback;
+    if (strcasecmp(value, "true") == 0  ||
+        strcasecmp(value, "yes") == 0   ||
+        strcasecmp(value, "1") == 0     ||
+        strcasecmp(value, "on") == 0) {
+        return TRUE;
+    }
+    if (strcasecmp(value, "false") == 0 ||
+        strcasecmp(value, "no") == 0    ||
+        strcasecmp(value, "0") == 0     ||
+        strcasecmp(value, "off") == 0) {
+        return FALSE;
+    }
+    return fallback;
+}
+
+static int parse_int(const char *value, int fallback) {
+    if (value == NULL || value[0] == '\0') return fallback;
+    char *end = NULL;
+    long v = strtol(value, &end, 10);
+    if (end == value) return fallback;
+    return (int)v;
+}
+
+static int parse_position(const char *value, int fallback) {
+    if (value == NULL) return fallback;
+    if (strcasecmp(value, "top") == 0)    return GTK_POS_TOP;
+    if (strcasecmp(value, "bottom") == 0) return GTK_POS_BOTTOM;
+    if (strcasecmp(value, "left") == 0)   return GTK_POS_LEFT;
+    if (strcasecmp(value, "right") == 0)  return GTK_POS_RIGHT;
+    /* Allow numeric GTK_POS_* values too. */
+    return parse_int(value, fallback);
+}
+
+/* ── Load / Save ──────────────────────────────────────────────────── */
+
+void settings_load(void) {
+    settings_set_defaults(&g_settings);
+
+    char path[512];
+    if (settings_path(path, sizeof(path)) != 0) {
+        return;
+    }
+
+    FILE *f = fopen(path, "r");
+    if (f == NULL) {
+        return;
+    }
+
+    char line[1024];
+    while (fgets(line, sizeof(line), f) != NULL) {
+        /* Strip newline. */
+        size_t len = strlen(line);
+        while (len > 0 && (line[len - 1] == '\n' || line[len - 1] == '\r')) {
+            line[--len] = '\0';
+        }
+        if (len == 0 || line[0] == '#') continue;
+
+        /* Split key=value. */
+        char *eq = strchr(line, '=');
+        if (eq == NULL) continue;
+        *eq = '\0';
+        char *key   = line;
+        char *value = eq + 1;
+
+        /* Trim whitespace from key. */
+        while (*key == ' ' || *key == '\t') key++;
+        char *kend = key + strlen(key);
+        while (kend > key && (kend[-1] == ' ' || kend[-1] == '\t')) *--kend = '\0';
+
+        /* Trim whitespace from value. */
+        while (*value == ' ' || *value == '\t') value++;
+
+        if (strcmp(key, "restore_session") == 0) {
+            g_settings.restore_session = parse_bool(value, g_settings.restore_session);
+        } else if (strcmp(key, "new_tab_url") == 0) {
+            snprintf(g_settings.new_tab_url, sizeof(g_settings.new_tab_url),
+                     "%s", value);
+        } else if (strcmp(key, "tab_bar_position") == 0) {
+            g_settings.tab_bar_position = parse_position(value, g_settings.tab_bar_position);
+        } else if (strcmp(key, "show_tab_close_buttons") == 0) {
+            g_settings.show_tab_close_buttons = parse_bool(value, g_settings.show_tab_close_buttons);
+        } else if (strcmp(key, "middle_click_close") == 0) {
+            g_settings.middle_click_close = parse_bool(value, g_settings.middle_click_close);
+        } else if (strcmp(key, "ctrl_tab_switch") == 0) {
+            g_settings.ctrl_tab_switch = parse_bool(value, g_settings.ctrl_tab_switch);
+        } else if (strcmp(key, "max_tabs") == 0) {
+            g_settings.max_tabs = parse_int(value, g_settings.max_tabs);
+            if (g_settings.max_tabs < 1) g_settings.max_tabs = 1;
+        } else if (strcmp(key, "tab_drag_reorder") == 0) {
+            g_settings.tab_drag_reorder = parse_bool(value, g_settings.tab_drag_reorder);
+        }
+        /* Unknown keys are silently ignored. */
+    }
+    fclose(f);
+}
+
+void settings_save(void) {
+    char path[512];
+    if (settings_path(path, sizeof(path)) != 0) {
+        return;
+    }
+
+    FILE *f = fopen(path, "w");
+    if (f == NULL) {
+        return;
+    }
+    fchmod(fileno(f), 0600);
+
+    const char *pos_str = "top";
+    switch (g_settings.tab_bar_position) {
+        case GTK_POS_TOP:    pos_str = "top";    break;
+        case GTK_POS_BOTTOM: pos_str = "bottom"; break;
+        case GTK_POS_LEFT:   pos_str = "left";   break;
+        case GTK_POS_RIGHT:  pos_str = "right";  break;
+    }
+
+    fprintf(f, "# sovereign_browser settings\n");
+    fprintf(f, "restore_session=%s\n",        g_settings.restore_session ? "true" : "false");
+    fprintf(f, "new_tab_url=%s\n",            g_settings.new_tab_url);
+    fprintf(f, "tab_bar_position=%s\n",       pos_str);
+    fprintf(f, "show_tab_close_buttons=%s\n", g_settings.show_tab_close_buttons ? "true" : "false");
+    fprintf(f, "middle_click_close=%s\n",     g_settings.middle_click_close ? "true" : "false");
+    fprintf(f, "ctrl_tab_switch=%s\n",        g_settings.ctrl_tab_switch ? "true" : "false");
+    fprintf(f, "max_tabs=%d\n",               g_settings.max_tabs);
+    fprintf(f, "tab_drag_reorder=%s\n",       g_settings.tab_drag_reorder ? "true" : "false");
+
+    fclose(f);
+}
+
+const browser_settings_t *settings_get(void) {
+    return &g_settings;
+}
+
+browser_settings_t *settings_get_mutable(void) {
+    return &g_settings;
+}
--- a/src/settings.h
+++ b/src/settings.h
@@ -0,0 +1,61 @@
+/*
+ * settings.h — browser preferences for sovereign_browser
+ *
+ * Persists user-configurable settings to ~/.sovereign_browser/settings.conf
+ * as simple key=value lines. A global singleton is loaded at startup and
+ * accessed via settings_get().
+ */
+
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#include <glib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SETTINGS_NEW_TAB_URL_DEFAULT "https://example.com"
+#define SETTINGS_NEW_TAB_URL_MAX     512
+#define SETTINGS_MAX_TABS_DEFAULT    50
+
+typedef struct {
+    gboolean restore_session;          /* restore open tabs on next launch */
+    char     new_tab_url[SETTINGS_NEW_TAB_URL_MAX];
+    int      tab_bar_position;         /* GTK_POS_TOP / BOTTOM / LEFT / RIGHT */
+    gboolean show_tab_close_buttons;   /* show per-tab close button */
+    gboolean middle_click_close;       /* middle-click on tab closes it */
+    gboolean ctrl_tab_switch;          /* Ctrl+Tab cycles tabs */
+    int      max_tabs;                 /* maximum simultaneous tabs */
+    gboolean tab_drag_reorder;         /* allow drag to reorder tabs */
+} browser_settings_t;
+
+/*
+ * Load settings from disk into the global singleton.
+ * If the file doesn't exist or a key is missing, defaults are used.
+ * Call once at startup.
+ */
+void settings_load(void);
+
+/*
+ * Save the current global settings to disk.
+ */
+void settings_save(void);
+
+/*
+ * Get a pointer to the global settings singleton.
+ * Always valid after settings_load().
+ */
+const browser_settings_t *settings_get(void);
+
+/*
+ * Get a mutable pointer to the global settings.
+ * Used by the settings dialog to modify values; call settings_save() after.
+ */
+browser_settings_t *settings_get_mutable(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SETTINGS_H */
--- a/src/tab_manager.c
+++ b/src/tab_manager.c
@@ -0,0 +1,783 @@
+/*
+ * tab_manager.c — multi-tab management for sovereign_browser
+ *
+ * Each tab is a GtkBox page containing a per-tab toolbar (hamburger menu +
+ * URL entry) and a WebKitWebView. All webviews share the same
+ * WebKitWebContext so the sovereign:// bridge and security settings apply
+ * to every tab automatically.
+ */
+
+#include "tab_manager.h"
+#include "settings.h"
+#include "nostr_inject.h"
+#include "history.h"
+#include "version.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+/* ── External callbacks defined in main.c ─────────────────────────── *
+ * These handle identity-related menu actions that need access to the
+ * global app_state_t (signer, pubkey, method). main.c owns that state.
+ */
+/* Proxy functions defined in main.c that wrap the app_state_t-aware
+ * callbacks so they match GTK signal handler signatures. */
+extern void app_menu_switch_identity_proxy(GtkMenuItem *item, gpointer data);
+extern void app_menu_lock_session_proxy(GtkMenuItem *item, gpointer data);
+extern void app_menu_logout_proxy(GtkMenuItem *item, gpointer data);
+extern void app_menu_security_strip_proxy(GtkCheckMenuItem *item, gpointer data);
+extern void app_menu_fips_proxy(GtkMenuItem *item, gpointer data);
+extern void app_menu_nostr_sign_proxy(GtkMenuItem *item, gpointer data);
+extern void app_menu_about_proxy(GtkMenuItem *item, gpointer data);
+extern void on_menu_settings(GtkMenuItem *item, gpointer data);
+
+/* ── Static state ─────────────────────────────────────────────────── */
+
+static GtkWidget       *g_notebook    = NULL;
+static WebKitWebContext *g_ctx        = NULL;
+static GtkWindow        *g_window     = NULL;
+
+/* Dynamic array of tab_info_t pointers, indexed by notebook page number. */
+static tab_info_t **g_tabs      = NULL;
+static int          g_tab_count  = 0;
+static int          g_tab_cap    = 0;
+
+/* ── Forward declarations ─────────────────────────────────────────── */
+
+static tab_info_t *tab_create(const char *url);
+static GtkWidget   *build_tab_label(tab_info_t *tab);
+static GtkWidget   *build_hamburger_menu(tab_info_t *tab);
+static char        *normalize_url(const char *input);
+static void         on_tab_close_clicked_proxy_new(GtkMenuItem *item, gpointer data);
+
+/* ── URL helper (same logic as main.c's normalize_url) ────────────── */
+
+static char *normalize_url(const char *input) {
+    if (input == NULL || input[0] == '\0') {
+        return NULL;
+    }
+    if (strstr(input, "://") != NULL) {
+        return g_strdup(input);
+    }
+    return g_strdup_printf("https://%s", input);
+}
+
+/* ── Tab label widget ─────────────────────────────────────────────── */
+
+static void on_tab_close_clicked(GtkButton *btn, gpointer user_data) {
+    tab_info_t *tab = (tab_info_t *)user_data;
+    (void)btn;
+    int index = gtk_notebook_page_num(GTK_NOTEBOOK(g_notebook), tab->page);
+    if (index >= 0) {
+        tab_manager_close_tab(index);
+    }
+}
+
+static gboolean on_tab_label_button_press(GtkWidget *widget,
+                                           GdkEventButton *event,
+                                           gpointer user_data) {
+    (void)widget;
+    tab_info_t *tab = (tab_info_t *)user_data;
+    int index = gtk_notebook_page_num(GTK_NOTEBOOK(g_notebook), tab->page);
+
+    if (index < 0) return FALSE;
+
+    const browser_settings_t *s = settings_get();
+
+    /* Middle-click to close. */
+    if (event->button == 2 && s->middle_click_close) {
+        tab_manager_close_tab(index);
+        return TRUE;
+    }
+
+    /* Right-click context menu. */
+    if (event->button == 3) {
+        GtkWidget *menu = gtk_menu_new();
+
+        GtkWidget *item_new = gtk_menu_item_new_with_label("New Tab");
+        g_signal_connect(item_new, "activate",
+                         G_CALLBACK(on_tab_close_clicked_proxy_new), NULL);
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_new);
+
+        GtkWidget *item_close = gtk_menu_item_new_with_label("Close Tab");
+        g_signal_connect_swapped(item_close, "activate",
+                                 G_CALLBACK(tab_manager_close_tab),
+                                 GINT_TO_POINTER(index));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_close);
+
+        GtkWidget *item_close_others =
+            gtk_menu_item_new_with_label("Close Other Tabs");
+        g_signal_connect_swapped(item_close_others, "activate",
+                                 G_CALLBACK(tab_manager_close_others),
+                                 GINT_TO_POINTER(index));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_close_others);
+
+        GtkWidget *item_close_right =
+            gtk_menu_item_new_with_label("Close Tabs to the Right");
+        g_signal_connect_swapped(item_close_right, "activate",
+                                 G_CALLBACK(tab_manager_close_to_right),
+                                 GINT_TO_POINTER(index));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_close_right);
+
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                              gtk_separator_menu_item_new());
+
+        GtkWidget *item_dup = gtk_menu_item_new_with_label("Duplicate Tab");
+        g_signal_connect_swapped(item_dup, "activate",
+                                 G_CALLBACK(tab_manager_duplicate),
+                                 GINT_TO_POINTER(index));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_dup);
+
+        GtkWidget *item_reload = gtk_menu_item_new_with_label("Reload Tab");
+        g_signal_connect_swapped(item_reload, "activate",
+                                 G_CALLBACK(tab_manager_reload),
+                                 GINT_TO_POINTER(index));
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_reload);
+
+        gtk_widget_show_all(menu);
+        gtk_menu_popup_at_pointer(GTK_MENU(menu), (GdkEvent *)event);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+/* Proxy callback for "New Tab" in the context menu — just calls new_tab. */
+static void on_tab_close_clicked_proxy_new(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    tab_manager_new_tab(NULL);
+}
+
+static GtkWidget *build_tab_label(tab_info_t *tab) {
+    GtkWidget *box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
+
+    /* Favicon placeholder icon. */
+    GtkWidget *icon = gtk_image_new_from_icon_name("text-html",
+                                                    GTK_ICON_SIZE_MENU);
+    gtk_box_pack_start(GTK_BOX(box), icon, FALSE, FALSE, 0);
+
+    /* Title label. */
+    tab->title_label = gtk_label_new("New Tab");
+    gtk_label_set_ellipsize(GTK_LABEL(tab->title_label), PANGO_ELLIPSIZE_END);
+    gtk_label_set_max_width_chars(GTK_LABEL(tab->title_label), 20);
+    gtk_box_pack_start(GTK_BOX(box), tab->title_label, TRUE, TRUE, 0);
+
+    /* Close button. */
+    const browser_settings_t *s = settings_get();
+    if (s->show_tab_close_buttons) {
+        GtkWidget *close_btn = gtk_button_new();
+        gtk_button_set_relief(GTK_BUTTON(close_btn), GTK_RELIEF_NONE);
+        gtk_button_set_image(GTK_BUTTON(close_btn),
+            gtk_image_new_from_icon_name("window-close-symbolic",
+                                          GTK_ICON_SIZE_MENU));
+        gtk_widget_set_tooltip_text(close_btn, "Close tab");
+        g_signal_connect(close_btn, "clicked",
+                         G_CALLBACK(on_tab_close_clicked), tab);
+        gtk_box_pack_start(GTK_BOX(box), close_btn, FALSE, FALSE, 0);
+    }
+
+    /* Connect button-press for middle-click and right-click on the label. */
+    gtk_widget_add_events(box, GDK_BUTTON_PRESS_MASK);
+    g_signal_connect(box, "button-press-event",
+                     G_CALLBACK(on_tab_label_button_press), tab);
+
+    gtk_widget_show_all(box);
+    return box;
+}
+
+/* ── Per-tab signal handlers ──────────────────────────────────────── */
+
+static void on_url_activate(GtkEntry *entry, gpointer user_data) {
+    tab_info_t *tab = (tab_info_t *)user_data;
+    const char *text = gtk_entry_get_text(entry);
+    char *url = normalize_url(text);
+    if (url != NULL) {
+        webkit_web_view_load_uri(tab->webview, url);
+        g_free(url);
+    }
+}
+
+static void on_load_changed(WebKitWebView *webview,
+                            WebKitLoadEvent load_event,
+                            gpointer user_data) {
+    tab_info_t *tab = (tab_info_t *)user_data;
+
+    if (load_event == WEBKIT_LOAD_COMMITTED) {
+        const gchar *uri = webkit_web_view_get_uri(webview);
+        if (uri != NULL) {
+            gtk_entry_set_text(GTK_ENTRY(tab->url_entry), uri);
+            snprintf(tab->current_url, sizeof(tab->current_url), "%s", uri);
+        }
+    } else if (load_event == WEBKIT_LOAD_FINISHED) {
+        const gchar *title = webkit_web_view_get_title(webview);
+        const gchar *uri   = webkit_web_view_get_uri(webview);
+        g_print("[loaded] %s -- title: %s\n",
+                uri ? uri : "(null)",
+                (title && title[0]) ? title : "(none)");
+
+        /* Update tab title. */
+        if (title && title[0]) {
+            int index = gtk_notebook_page_num(GTK_NOTEBOOK(g_notebook),
+                                               tab->page);
+            if (index >= 0) {
+                tab_manager_set_title(index, title);
+            }
+        }
+
+        /* Add to history. */
+        if (uri != NULL && uri[0] != '\0') {
+            history_add(uri);
+        }
+    }
+}
+
+static gboolean on_load_failed(WebKitWebView *webview,
+                               WebKitLoadEvent load_event,
+                               gchar *failing_uri,
+                               GError *error,
+                               gpointer data) {
+    (void)webview;
+    (void)load_event;
+    (void)data;
+    g_print("[failed] %s -- %s\n",
+            failing_uri ? failing_uri : "(null)",
+            error ? error->message : "(unknown)");
+    return FALSE;
+}
+
+/* ── Hamburger menu callbacks (webview-specific) ──────────────────── */
+
+static void on_menu_reload(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    tab_info_t *tab = tab_manager_get_active();
+    if (tab && tab->webview) {
+        webkit_web_view_reload_bypass_cache(tab->webview);
+    }
+}
+
+static void on_menu_stop(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    tab_info_t *tab = tab_manager_get_active();
+    if (tab && tab->webview) {
+        webkit_web_view_stop_loading(tab->webview);
+    }
+}
+
+static void on_menu_inspector(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    tab_info_t *tab = tab_manager_get_active();
+    if (tab && tab->webview) {
+        WebKitWebInspector *insp = webkit_web_view_get_inspector(tab->webview);
+        if (insp) webkit_web_inspector_show(insp);
+    }
+}
+
+static void on_menu_open_file(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    if (g_window == NULL) return;
+
+    GtkWidget *dialog = gtk_file_chooser_dialog_new(
+        "Open File", g_window, GTK_FILE_CHOOSER_ACTION_OPEN,
+        "_Cancel", GTK_RESPONSE_CANCEL,
+        "_Open", GTK_RESPONSE_ACCEPT, NULL);
+
+    GtkFileFilter *filter_html = gtk_file_filter_new();
+    gtk_file_filter_set_name(filter_html, "HTML files");
+    gtk_file_filter_add_pattern(filter_html, "*.html");
+    gtk_file_filter_add_pattern(filter_html, "*.htm");
+    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter_html);
+
+    GtkFileFilter *filter_all = gtk_file_filter_new();
+    gtk_file_filter_set_name(filter_all, "All files");
+    gtk_file_filter_add_pattern(filter_all, "*");
+    gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(dialog), filter_all);
+
+    if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
+        char *filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
+        char *uri = g_strdup_printf("file://%s", filename);
+        tab_info_t *tab = tab_manager_get_active();
+        if (tab && tab->webview) {
+            webkit_web_view_load_uri(tab->webview, uri);
+        }
+        g_free(uri);
+        g_free(filename);
+    }
+    gtk_widget_destroy(dialog);
+}
+
+static void on_menu_history_item(GtkMenuItem *item, gpointer data) {
+    (void)data;
+    tab_info_t *tab = tab_manager_get_active();
+    if (tab == NULL || tab->webview == NULL || item == NULL) return;
+    const char *url = gtk_menu_item_get_label(item);
+    if (url && url[0]) {
+        char *normalized = normalize_url(url);
+        if (normalized) {
+            webkit_web_view_load_uri(tab->webview, normalized);
+            g_free(normalized);
+        }
+    }
+}
+
+static void on_menu_history_clear(GtkMenuItem *item, gpointer data) {
+    (void)item;
+    (void)data;
+    history_clear();
+    g_print("[history] cleared\n");
+}
+
+static void on_history_menu_show(GtkWidget *menu, gpointer user_data) {
+    (void)user_data;
+
+    /* Remove all existing items. */
+    GList *children = gtk_container_get_children(GTK_CONTAINER(menu));
+    for (GList *l = children; l != NULL; l = l->next) {
+        gtk_widget_destroy(GTK_WIDGET(l->data));
+    }
+    g_list_free(children);
+
+    /* Rebuild with current history. */
+    int hcount = history_count();
+    if (hcount == 0) {
+        GtkWidget *empty = gtk_menu_item_new_with_label("(no recent pages)");
+        gtk_widget_set_sensitive(empty, FALSE);
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), empty);
+    } else {
+        int show = hcount < 20 ? hcount : 20;
+        for (int i = 0; i < show; i++) {
+            const char *url = history_get(i);
+            if (url == NULL) break;
+            char label[80];
+            if (strlen(url) > 75) {
+                snprintf(label, sizeof(label), "%.72s...", url);
+            } else {
+                snprintf(label, sizeof(label), "%s", url);
+            }
+            GtkWidget *hitem = gtk_menu_item_new_with_label(label);
+            gtk_widget_set_tooltip_text(hitem, url);
+            g_signal_connect(hitem, "activate",
+                             G_CALLBACK(on_menu_history_item), NULL);
+            gtk_menu_shell_append(GTK_MENU_SHELL(menu), hitem);
+        }
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                              gtk_separator_menu_item_new());
+        GtkWidget *clear_item = gtk_menu_item_new_with_label("Clear Recents");
+        g_signal_connect(clear_item, "activate",
+                         G_CALLBACK(on_menu_history_clear), NULL);
+        gtk_menu_shell_append(GTK_MENU_SHELL(menu), clear_item);
+    }
+    gtk_widget_show_all(menu);
+}
+
+/* ── Hamburger menu builder ───────────────────────────────────────── */
+
+static GtkWidget *build_hamburger_menu(tab_info_t *tab) {
+    (void)tab;
+    GtkWidget *menu = gtk_menu_new();
+
+    /* Navigation group. */
+    GtkWidget *item_open   = gtk_menu_item_new_with_label("Open File…");
+    GtkWidget *item_reload = gtk_menu_item_new_with_label("Reload");
+    GtkWidget *item_stop   = gtk_menu_item_new_with_label("Stop");
+    g_signal_connect(item_open, "activate", G_CALLBACK(on_menu_open_file), NULL);
+    g_signal_connect(item_reload, "activate", G_CALLBACK(on_menu_reload), NULL);
+    g_signal_connect(item_stop, "activate", G_CALLBACK(on_menu_stop), NULL);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_open);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_reload);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_stop);
+
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                          gtk_separator_menu_item_new());
+
+    /* Recents submenu. */
+    GtkWidget *history_menu = gtk_menu_new();
+    g_signal_connect(history_menu, "show", G_CALLBACK(on_history_menu_show), NULL);
+    GtkWidget *item_history = gtk_menu_item_new_with_label("Recents");
+    gtk_menu_item_set_submenu(GTK_MENU_ITEM(item_history), history_menu);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_history);
+
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                          gtk_separator_menu_item_new());
+
+    /* Identity group — delegated to main.c (app_state_t). */
+    GtkWidget *item_switch = gtk_menu_item_new_with_label("Switch Identity…");
+    GtkWidget *item_lock   = gtk_menu_item_new_with_label("Lock Session");
+    GtkWidget *item_logout = gtk_menu_item_new_with_label("Logout");
+    g_signal_connect(item_switch, "activate",
+                     G_CALLBACK(app_menu_switch_identity_proxy), g_window);
+    g_signal_connect(item_lock, "activate",
+                     G_CALLBACK(app_menu_lock_session_proxy), NULL);
+    g_signal_connect(item_logout, "activate",
+                     G_CALLBACK(app_menu_logout_proxy), NULL);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_switch);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_lock);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_logout);
+
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                          gtk_separator_menu_item_new());
+
+    /* Roadmap group. */
+    GtkWidget *item_security =
+        gtk_check_menu_item_new_with_label("Security strip (SOP/CORS/certs)");
+    gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item_security), FALSE);
+    g_signal_connect(item_security, "toggled",
+                     G_CALLBACK(app_menu_security_strip_proxy), NULL);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_security);
+
+    GtkWidget *item_fips  = gtk_menu_item_new_with_label("FIPS URI scheme…");
+    GtkWidget *item_nostr = gtk_menu_item_new_with_label("Nostr signing status");
+    g_signal_connect(item_fips, "activate",
+                     G_CALLBACK(app_menu_fips_proxy), NULL);
+    g_signal_connect(item_nostr, "activate",
+                     G_CALLBACK(app_menu_nostr_sign_proxy), NULL);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_fips);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_nostr);
+
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu),
+                          gtk_separator_menu_item_new());
+
+    GtkWidget *item_inspector = gtk_menu_item_new_with_label("Toggle Inspector");
+    g_signal_connect(item_inspector, "activate",
+                     G_CALLBACK(on_menu_inspector), NULL);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_inspector);
+
+    GtkWidget *item_settings = gtk_menu_item_new_with_label("Settings…");
+    g_signal_connect(item_settings, "activate",
+                     G_CALLBACK(on_menu_settings), g_window);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_settings);
+
+    GtkWidget *item_about = gtk_menu_item_new_with_label("About");
+    g_signal_connect(item_about, "activate",
+                     G_CALLBACK(app_menu_about_proxy), g_window);
+    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item_about);
+
+    gtk_widget_show_all(menu);
+
+    GtkWidget *button = gtk_menu_button_new();
+    gtk_menu_button_set_popup(GTK_MENU_BUTTON(button), menu);
+    gtk_button_set_image(
+        GTK_BUTTON(button),
+        gtk_image_new_from_icon_name("open-menu-symbolic",
+                                      GTK_ICON_SIZE_BUTTON));
+    gtk_widget_set_tooltip_text(button, "Menu");
+    return button;
+}
+
+/* ── Tab array management ─────────────────────────────────────────── */
+
+static int tab_array_add(tab_info_t *tab) {
+    if (g_tab_count >= g_tab_cap) {
+        int new_cap = g_tab_cap == 0 ? 8 : g_tab_cap * 2;
+        tab_info_t **new_arr = g_realloc(g_tabs, new_cap * sizeof(tab_info_t *));
+        if (new_arr == NULL) return -1;
+        g_tabs = new_arr;
+        g_tab_cap = new_cap;
+    }
+    g_tabs[g_tab_count] = tab;
+    return g_tab_count++;
+}
+
+static void tab_array_remove(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+    /* Free the tab_info_t. */
+    tab_info_t *tab = g_tabs[index];
+    if (tab) {
+        /* The webview and widgets are destroyed by GtkNotebook when the
+         * page is removed. We just free the struct. */
+        g_free(tab);
+    }
+    /* Shift remaining entries down. */
+    for (int i = index; i < g_tab_count - 1; i++) {
+        g_tabs[i] = g_tabs[i + 1];
+    }
+    g_tab_count--;
+}
+
+/* ── Tab creation ─────────────────────────────────────────────────── */
+
+static tab_info_t *tab_create(const char *url) {
+    const browser_settings_t *s = settings_get();
+
+    tab_info_t *tab = g_new0(tab_info_t, 1);
+    if (tab == NULL) return NULL;
+
+    /* Determine the URL to load. */
+    const char *load_url = url;
+    char *default_url = NULL;
+    if (load_url == NULL || load_url[0] == '\0') {
+        load_url = s->new_tab_url;
+    }
+    default_url = normalize_url(load_url);
+    if (default_url == NULL) {
+        default_url = g_strdup(load_url);
+    }
+
+    snprintf(tab->current_url, sizeof(tab->current_url), "%s", default_url);
+    snprintf(tab->title, sizeof(tab->title), "Loading…");
+
+    /* Create the webview from the shared context. */
+    tab->webview = WEBKIT_WEB_VIEW(webkit_web_view_new_with_context(g_ctx));
+
+    /* Enable developer extras + security settings (same as original main.c). */
+    WebKitSettings *settings = webkit_web_view_get_settings(tab->webview);
+    webkit_settings_set_enable_developer_extras(settings, TRUE);
+    webkit_settings_set_enable_javascript(settings, TRUE);
+    webkit_settings_set_javascript_can_open_windows_automatically(settings, TRUE);
+    webkit_settings_set_allow_file_access_from_file_urls(settings, TRUE);
+    webkit_settings_set_allow_universal_access_from_file_urls(settings, TRUE);
+    webkit_settings_set_allow_modal_dialogs(settings, TRUE);
+
+    /* Inject window.nostr into this webview. */
+    nostr_inject_setup(tab->webview);
+
+    /* Build the per-tab page: toolbar on top, webview below. */
+    tab->page = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+
+    GtkWidget *toolbar = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 4);
+    gtk_widget_set_margin_top(toolbar, 4);
+    gtk_widget_set_margin_bottom(toolbar, 4);
+    gtk_widget_set_margin_start(toolbar, 4);
+    gtk_widget_set_margin_end(toolbar, 4);
+    gtk_box_pack_start(GTK_BOX(tab->page), toolbar, FALSE, FALSE, 0);
+
+    tab->hamburger = build_hamburger_menu(tab);
+    gtk_box_pack_start(GTK_BOX(toolbar), tab->hamburger, FALSE, FALSE, 0);
+
+    tab->url_entry = gtk_entry_new();
+    gtk_entry_set_text(GTK_ENTRY(tab->url_entry), default_url);
+    gtk_box_pack_start(GTK_BOX(toolbar), tab->url_entry, TRUE, TRUE, 0);
+
+    gtk_box_pack_start(GTK_BOX(tab->page), GTK_WIDGET(tab->webview),
+                       TRUE, TRUE, 0);
+
+    /* Build the tab label. */
+    tab->tab_label = build_tab_label(tab);
+
+    /* Wire signals. */
+    g_signal_connect(tab->url_entry, "activate",
+                     G_CALLBACK(on_url_activate), tab);
+    g_signal_connect(tab->webview, "load-changed",
+                     G_CALLBACK(on_load_changed), tab);
+    g_signal_connect(tab->webview, "load-failed",
+                     G_CALLBACK(on_load_failed), NULL);
+
+    /* Load the URL. */
+    webkit_web_view_load_uri(tab->webview, default_url);
+    g_free(default_url);
+
+    return tab;
+}
+
+/* ── New tab button ───────────────────────────────────────────────── */
+
+static void on_new_tab_clicked(GtkButton *btn, gpointer data) {
+    (void)btn;
+    (void)data;
+    tab_manager_new_tab(NULL);
+}
+
+/* ── Public API ───────────────────────────────────────────────────── */
+
+void tab_manager_init(GtkContainer      *parent,
+                      WebKitWebContext *ctx,
+                      GtkWindow        *window) {
+    g_ctx    = ctx;
+    g_window = window;
+
+    g_notebook = gtk_notebook_new();
+    gtk_notebook_set_scrollable(GTK_NOTEBOOK(g_notebook), TRUE);
+    gtk_notebook_set_show_border(GTK_NOTEBOOK(g_notebook), FALSE);
+
+    /* New-tab button as an action widget at the end of the tab strip. */
+    GtkWidget *new_btn = gtk_button_new();
+    gtk_button_set_relief(GTK_BUTTON(new_btn), GTK_RELIEF_NONE);
+    gtk_button_set_image(GTK_BUTTON(new_btn),
+        gtk_image_new_from_icon_name("tab-new-symbolic",
+                                      GTK_ICON_SIZE_BUTTON));
+    gtk_widget_set_tooltip_text(new_btn, "New tab (Ctrl+T)");
+    g_signal_connect(new_btn, "clicked", G_CALLBACK(on_new_tab_clicked), NULL);
+    gtk_widget_show_all(new_btn);
+    gtk_notebook_set_action_widget(GTK_NOTEBOOK(g_notebook), new_btn,
+                                    GTK_PACK_END);
+
+    gtk_container_add(parent, g_notebook);
+
+    tab_manager_apply_settings();
+}
+
+void tab_manager_apply_settings(void) {
+    if (g_notebook == NULL) return;
+    const browser_settings_t *s = settings_get();
+
+    gtk_notebook_set_tab_pos(GTK_NOTEBOOK(g_notebook), s->tab_bar_position);
+
+    /* Apply drag reorder to all existing tabs. */
+    for (int i = 0; i < g_tab_count; i++) {
+        if (g_tabs[i] && g_tabs[i]->page) {
+            gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(g_notebook),
+                                              g_tabs[i]->page,
+                                              s->tab_drag_reorder);
+        }
+    }
+}
+
+int tab_manager_new_tab(const char *url) {
+    const browser_settings_t *s = settings_get();
+    if (g_tab_count >= s->max_tabs) {
+        g_print("[tabs] Maximum tab count (%d) reached\n", s->max_tabs);
+        return -1;
+    }
+
+    tab_info_t *tab = tab_create(url);
+    if (tab == NULL) return -1;
+
+    int index = tab_array_add(tab);
+    if (index < 0) {
+        g_free(tab);
+        return -1;
+    }
+
+    /* Add to notebook. */
+    int page_num = gtk_notebook_append_page(GTK_NOTEBOOK(g_notebook),
+                                             tab->page, tab->tab_label);
+    gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(g_notebook), tab->page,
+                                      s->tab_drag_reorder);
+
+    /* Switch to the new tab. */
+    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_notebook), page_num);
+
+    /* Show everything. */
+    gtk_widget_show_all(tab->page);
+    gtk_widget_show_all(tab->tab_label);
+
+    g_print("[tabs] Created tab %d, total: %d\n", page_num, g_tab_count);
+    return page_num;
+}
+
+void tab_manager_close_tab(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+
+    tab_info_t *tab = g_tabs[index];
+    if (tab == NULL) return;
+
+    /* Remove from notebook (this destroys the page widget). */
+    gtk_notebook_remove_page(GTK_NOTEBOOK(g_notebook), index);
+
+    /* Remove from our array. */
+    tab_array_remove(index);
+
+    g_print("[tabs] Closed tab %d, remaining: %d\n", index, g_tab_count);
+
+    /* If no tabs left, quit the app. */
+    if (g_tab_count == 0) {
+        g_print("[tabs] Last tab closed, exiting.\n");
+        if (g_window) {
+            gtk_window_close(g_window);
+        }
+    }
+}
+
+void tab_manager_close_active(void) {
+    int index = tab_manager_get_active_index();
+    if (index >= 0) {
+        tab_manager_close_tab(index);
+    }
+}
+
+int tab_manager_get_active_index(void) {
+    if (g_notebook == NULL) return -1;
+    return gtk_notebook_get_current_page(GTK_NOTEBOOK(g_notebook));
+}
+
+void tab_manager_switch_to(int index) {
+    if (g_notebook == NULL) return;
+    if (index < 0 || index >= g_tab_count) return;
+    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_notebook), index);
+}
+
+tab_info_t *tab_manager_get_active(void) {
+    int index = tab_manager_get_active_index();
+    if (index < 0 || index >= g_tab_count) return NULL;
+    return g_tabs[index];
+}
+
+tab_info_t *tab_manager_get(int index) {
+    if (index < 0 || index >= g_tab_count) return NULL;
+    return g_tabs[index];
+}
+
+int tab_manager_count(void) {
+    return g_tab_count;
+}
+
+void tab_manager_set_title(int index, const char *title) {
+    if (index < 0 || index >= g_tab_count) return;
+    tab_info_t *tab = g_tabs[index];
+    if (tab == NULL || tab->title_label == NULL) return;
+
+    snprintf(tab->title, sizeof(tab->title), "%s",
+             (title && title[0]) ? title : "(Untitled)");
+    gtk_label_set_text(GTK_LABEL(tab->title_label), tab->title);
+}
+
+const char *tab_manager_get_url(int index) {
+    if (index < 0 || index >= g_tab_count) return NULL;
+    tab_info_t *tab = g_tabs[index];
+    if (tab == NULL) return NULL;
+    return tab->current_url;
+}
+
+void tab_manager_next(void) {
+    if (g_notebook == NULL || g_tab_count == 0) return;
+    int cur = gtk_notebook_get_current_page(GTK_NOTEBOOK(g_notebook));
+    int next = (cur + 1) % g_tab_count;
+    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_notebook), next);
+}
+
+void tab_manager_prev(void) {
+    if (g_notebook == NULL || g_tab_count == 0) return;
+    int cur = gtk_notebook_get_current_page(GTK_NOTEBOOK(g_notebook));
+    int prev = (cur - 1 + g_tab_count) % g_tab_count;
+    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_notebook), prev);
+}
+
+void tab_manager_close_others(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+
+    /* Close tabs to the right first (indices shift as we close). */
+    tab_manager_close_to_right(index);
+
+    /* Close tabs to the left (close from the start so indices stay valid). */
+    while (index > 0) {
+        tab_manager_close_tab(0);
+        index--;
+    }
+}
+
+void tab_manager_close_to_right(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+    /* Close from the end so indices don't shift. */
+    while (g_tab_count > index + 1) {
+        tab_manager_close_tab(g_tab_count - 1);
+    }
+}
+
+void tab_manager_duplicate(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+    tab_info_t *tab = g_tabs[index];
+    if (tab == NULL) return;
+    tab_manager_new_tab(tab->current_url);
+}
+
+void tab_manager_reload(int index) {
+    if (index < 0 || index >= g_tab_count) return;
+    tab_info_t *tab = g_tabs[index];
+    if (tab && tab->webview) {
+        webkit_web_view_reload_bypass_cache(tab->webview);
+    }
+}
--- a/src/tab_manager.h
+++ b/src/tab_manager.h
@@ -0,0 +1,142 @@
+/*
+ * tab_manager.h — multi-tab management for sovereign_browser
+ *
+ * Wraps a GtkNotebook and manages per-tab state: each tab has its own
+ * toolbar (hamburger menu + URL entry) and WebKitWebView. All webviews
+ * share a single WebKitWebContext so the sovereign:// bridge, security
+ * settings, and TLS policy apply to every tab.
+ */
+
+#ifndef TAB_MANAGER_H
+#define TAB_MANAGER_H
+
+#include <gtk/gtk.h>
+#include <webkit2/webkit2.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TAB_TITLE_MAX     256
+#define TAB_URL_MAX       2048
+
+typedef struct {
+    WebKitWebView *webview;
+    GtkWidget     *url_entry;
+    GtkWidget     *hamburger;
+    GtkWidget     *page;          /* the vertical box (toolbar + webview) */
+    GtkWidget     *tab_label;    /* composite label widget for the tab strip */
+    GtkWidget     *title_label;  /* child of tab_label */
+    char           current_url[TAB_URL_MAX];
+    char           title[TAB_TITLE_MAX];
+} tab_info_t;
+
+/*
+ * Initialize the tab manager. Creates a GtkNotebook, adds it to parent,
+ * and stores the shared web context for creating new webviews.
+ *
+ *   parent:  the GtkContainer (typically a GtkBox) to add the notebook to
+ *   ctx:     the shared WebKitWebContext for all tabs
+ *   window:  the top-level GtkWindow (for menu dialogs, file choosers, etc.)
+ */
+void tab_manager_init(GtkContainer       *parent,
+                      WebKitWebContext  *ctx,
+                      GtkWindow         *window);
+
+/*
+ * Create a new tab and load the given URL (or the default new-tab URL
+ * if url is NULL). Returns the tab index, or -1 on failure (e.g. max
+ * tabs reached).
+ */
+int  tab_manager_new_tab(const char *url);
+
+/*
+ * Close the tab at the given index. If it's the last tab, the window
+ * destroy handler will fire (caller is responsible for quitting).
+ */
+void tab_manager_close_tab(int index);
+
+/*
+ * Close the currently active tab.
+ */
+void tab_manager_close_active(void);
+
+/*
+ * Get the index of the currently active tab.
+ */
+int  tab_manager_get_active_index(void);
+
+/*
+ * Switch to the tab at the given index.
+ */
+void tab_manager_switch_to(int index);
+
+/*
+ * Get the tab_info_t for the active tab, or NULL if no tabs exist.
+ */
+tab_info_t *tab_manager_get_active(void);
+
+/*
+ * Get the tab_info_t for the tab at the given index, or NULL.
+ */
+tab_info_t *tab_manager_get(int index);
+
+/*
+ * Get the number of open tabs.
+ */
+int  tab_manager_count(void);
+
+/*
+ * Update the title of the tab at the given index. Called from the
+ * load-changed signal handler when the page title becomes available.
+ */
+void tab_manager_set_title(int index, const char *title);
+
+/*
+ * Get the URL of the tab at the given index (for session save).
+ * Returns NULL if index is out of range.
+ */
+const char *tab_manager_get_url(int index);
+
+/*
+ * Cycle to the next tab (wraps around). Used by Ctrl+Tab / Ctrl+PageDown.
+ */
+void tab_manager_next(void);
+
+/*
+ * Cycle to the previous tab (wraps around). Used by Ctrl+Shift+Tab /
+ * Ctrl+PageUp.
+ */
+void tab_manager_prev(void);
+
+/*
+ * Close all tabs except the one at the given index.
+ */
+void tab_manager_close_others(int index);
+
+/*
+ * Close all tabs to the right of the given index.
+ */
+void tab_manager_close_to_right(int index);
+
+/*
+ * Duplicate the tab at the given index (open a new tab with the same URL).
+ */
+void tab_manager_duplicate(int index);
+
+/*
+ * Reload the tab at the given index.
+ */
+void tab_manager_reload(int index);
+
+/*
+ * Apply current settings (tab bar position, drag reorder, close buttons).
+ * Call after settings_change() or at init.
+ */
+void tab_manager_apply_settings(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* TAB_MANAGER_H */
--- a/src/version.h
+++ b/src/version.h
@@ -11,9 +11,9 @@
 #ifndef SOVEREIGN_BROWSER_VERSION_H
 #define SOVEREIGN_BROWSER_VERSION_H

-#define SB_VERSION         "v0.0.3"
+#define SB_VERSION         "v0.0.4"
 #define SB_VERSION_MAJOR   0
 #define SB_VERSION_MINOR   0
-#define SB_VERSION_PATCH   3
+#define SB_VERSION_PATCH   4

 #endif /* SOVEREIGN_BROWSER_VERSION_H */
@@ -1 +1 @@
 .0.3
 .0.4