diff --git a/nixcfgs/users/js0ny/programs/browsers/firefox/default.nix b/nixcfgs/users/js0ny/programs/browsers/firefox/default.nix
index a0e4357..6a1cb25 100644
--- a/nixcfgs/users/js0ny/programs/browsers/firefox/default.nix
+++ b/nixcfgs/users/js0ny/programs/browsers/firefox/default.nix
@@ -3,50 +3,13 @@
 {...}: {
   imports = [
     ./addons.nix
+    ./userjs.nix
+    ./keymaps.nix
     ./search.nix
     ./betterfox.nix
   ];
   programs.firefox = {
     enable = true;
-    profiles.default = {
-      settings = {
-        "browser.toolbars.bookmarks.visibility" = "never";
-        "extensions.update.enabled" = true;
-        "sidebar.expandOnHover" = true;
-        "sidebar.visibility" = "expand-on-hover";
-        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
-        "toolkit.tabbox.switchByScrolling" = true;
-        "browser.uidensity" = 1;
-        ### Disable Menu when pressing <Alt>
-        "ui.key.menuAccessKey" = -1;
-        "ui.key.menuAccessKeyFocuses" = false;
-        ### Disable Translations
-        "browser.translations.enable" = false;
-        "browser.translations.automaticallyPopup" = false;
-        ### CJK IME Optimisation
-        "browser.urlbar.keepPanelOpenDuringImeComposition" = true;
-        "browser.tabs.closeTabByDblclick" = true;
-        ### Session
-        # * 0: Blank Page
-        # * 1: Home Page
-        # * 2: Last Visited Pages
-        # * 3: Restore Previous Session
-        "browser.startup.page" = 3;
-        "browser.sessionstore.resume_from_crash" = true;
-        ### Sync
-        "services.sync.declinedEngines" = "creditcards,passwords,addresses,prefs,addons";
-        "services.sync.engine.addons" = false;
-        "services.sync.engine.addresses" = false;
-        "services.sync.engine.bookmarks" = true;
-        "services.sync.engine.creditcards" = false;
-        "services.sync.engine.history" = true;
-        "services.sync.engine.passwords" = false;
-        "services.sync.engine.prefs" = false;
-        "services.sync.engine.prefs.modified" = false;
-        "services.sync.engine.tabs" = true;
-        "services.sync.engins.tabs.filteredSchemes" = "about|resource|chrome|file|blob|moz-extension|data";
-      };
-    };
   };
 
   xdg.desktopEntries."firefox-private" = {
diff --git a/nixcfgs/users/js0ny/programs/browsers/firefox/keymaps.nix b/nixcfgs/users/js0ny/programs/browsers/firefox/keymaps.nix
new file mode 100644
index 0000000..ac30dda
--- /dev/null
+++ b/nixcfgs/users/js0ny/programs/browsers/firefox/keymaps.nix
@@ -0,0 +1,22 @@
+# New in Firefox 147
+# about:keyboard
+{pkgs, ...}: let
+  profileDir =
+    if pkgs.stdenv.isDarwin
+    then "Library/Application Support/Firefox/Profiles"
+    else ".mozilla/firefox";
+  profileName = "default";
+in {
+  home.file."${profileDir}/${profileName}/customKeys.json".text = builtins.toJSON {
+    key_privatebrowsing = {
+      modifiers = "accel,shift";
+      key = "N";
+    };
+    key_undoCloseWindow = {};
+    # Sidebery Sidebar
+    ext-key-id-_3c078156-979c-498b-8991-85f7987dd929_-sidebar-action = {};
+    viewGenaiChatSidebarKb = {};
+    key_viewInfo = {};
+    key_switchTextDirection = {};
+  };
+}
diff --git a/nixcfgs/users/js0ny/programs/browsers/firefox/userjs.nix b/nixcfgs/users/js0ny/programs/browsers/firefox/userjs.nix
new file mode 100644
index 0000000..c342dbf
--- /dev/null
+++ b/nixcfgs/users/js0ny/programs/browsers/firefox/userjs.nix
@@ -0,0 +1,46 @@
+{...}: {
+  programs.firefox = {
+    profiles.default = {
+      settings = {
+        "browser.toolbars.bookmarks.visibility" = "never";
+        "extensions.update.enabled" = true;
+        "sidebar.expandOnHover" = true;
+        "sidebar.visibility" = "expand-on-hover";
+        "toolkit.legacyUserProfileCustomizations.stylesheets" = true;
+        "toolkit.tabbox.switchByScrolling" = true;
+        "browser.uidensity" = 1;
+        ### Disable Menu when pressing <Alt>
+        "ui.key.menuAccessKey" = -1;
+        "ui.key.menuAccessKeyFocuses" = false;
+        ### Disable Translations
+        "browser.translations.enable" = false;
+        "browser.translations.automaticallyPopup" = false;
+        ### CJK IME Optimisation
+        "browser.urlbar.keepPanelOpenDuringImeComposition" = true;
+        "browser.tabs.closeTabByDblclick" = true;
+        ### Session
+        # * 0: Blank Page
+        # * 1: Home Page
+        # * 2: Last Visited Pages
+        # * 3: Restore Previous Session
+        "browser.startup.page" = 3;
+        "browser.sessionstore.resume_from_crash" = true;
+        ### Sync
+        "services.sync.declinedEngines" = "creditcards,passwords,addresses,prefs,addons";
+        "services.sync.engine.addons" = false;
+        "services.sync.engine.addresses" = false;
+        "services.sync.engine.bookmarks" = true;
+        "services.sync.engine.creditcards" = false;
+        "services.sync.engine.history" = true;
+        "services.sync.engine.passwords" = false;
+        "services.sync.engine.prefs" = false;
+        "services.sync.engine.prefs.modified" = false;
+        "services.sync.engine.tabs" = true;
+        "services.sync.engins.tabs.filteredSchemes" = "about|resource|chrome|file|blob|moz-extension|data";
+        # New Features
+        # 147: Keep playing videos in Picture-in-Picture when switching tabs
+        "media.videocontrols.picture-in-picture.enable-when-switching-tabs.enabled" = false;
+      };
+    };
+  };
+}