refacor: firefox search engine settings

modules/profiles/impermanence.nix

@@ -42,18 +42,18 @@ in
           ".SynologyDrive/log"
           ".cache/keepassxc"
           ".cache/nvim/luac"
+          ".cat_installer" # eduroam
+          ".config/JetBrains"
           ".config/Nextcloud"
+          ".config/calibre"
+          ".config/github-copilot"
+          ".config/kdeconnect"
           ".config/keepassxc"
+          ".local/share/JetBrains"
           ".local/share/direnv"
           ".local/share/nvim"
           ".local/share/zoxide"
-          ".local/share/JetBrains"
-          ".config/JetBrains"
-          ".config/calibre"
           ".local/state/nvim"
-          ".config/kdeconnect"
-          ".config/github-copilot"
-          ".cat_installer" # eduroam
           ".mozilla"
           "Documents"
           "Downloads"

modules/programs/firefox.nix

@@ -29,19 +29,36 @@ in
         );
       };
     };
-    setSearchEngines = mkEnableOption "firefox search engines";
+    package = mkOption {
+      type = types.package;
+      default = pkgs.firefox;
+      example = pkgs.firefox-esr;
+    };
   };
 
   config = mkIf cfg.enable {
     home-manager.users.moritz.programs.firefox = {
       enable = true;
-      policies = mkIf cfg.setSearchEngines {
-        SearchEngines = {
-          Default = "Kagi";
-          Remove = [ "Google" "Amazon.de" "Bing" ];
+      policies =
+        let
+          removeExtensions = [ "Google" "Amazon.de" "Bing" "Amazon" "Wikipedia (en)" "Wikipedia (de)" ];
+          convertName = name:
+            let
+              lower = toLower name;
+              escaped = replaceStrings [ "." ] [ "dot" ] lower;
+              sanitized = head (splitString " " escaped);
+            in
+            "${sanitized}@search.mozilla.org";
+        in
+        {
+          SearchEngines = mkIf (hasInfix "esr" cfg.package) {
+            Default = "Kagi";
+            Remove = removeExtensions;
+          };
+          ExtensionSettings = genAttrs
+            (map convertName removeExtensions)
+            (_: { installation_mode = "blocked"; });
         };
-      };
-      package = if cfg.setSearchEngines then pkgs.firefox-esr else pkgs.firefox;
       profiles."default" = {
         extraConfig = mkIf cfg.arkenfox.enable ''
           // Arkenfox user.js