diff --git a/configurations/home-manager/leyla/packages/firefox/firefox.nix b/configurations/home-manager/leyla/packages/firefox/firefox.nix
index fecb038..ef6d202 100644
--- a/configurations/home-manager/leyla/packages/firefox/firefox.nix
+++ b/configurations/home-manager/leyla/packages/firefox/firefox.nix
@@ -68,7 +68,7 @@
 
         snowflake
 
-        deutsch-de-language-pack
+        pkgs.firefox-extensions.deutsch-de-language-pack
         dictionary-german
 
         tab-session-manager
diff --git a/modules/common-modules/pkgs/firefox-extensions/default.nix b/modules/common-modules/pkgs/firefox-extensions/default.nix
index 5e3e70c..922dfc7 100644
--- a/modules/common-modules/pkgs/firefox-extensions/default.nix
+++ b/modules/common-modules/pkgs/firefox-extensions/default.nix
@@ -11,4 +11,7 @@ in {
   dizionario-italiano = pkgs.callPackage ./dizionario-italiano.nix {
     inherit buildFirefoxXpiAddon;
   };
+  deutsch-de-language-pack = pkgs.callPackage ./deutsch-de-language-pack.nix {
+    inherit buildFirefoxXpiAddon;
+  };
 }
diff --git a/modules/common-modules/pkgs/firefox-extensions/deutsch-de-language-pack.nix b/modules/common-modules/pkgs/firefox-extensions/deutsch-de-language-pack.nix
new file mode 100644
index 0000000..b769bfd
--- /dev/null
+++ b/modules/common-modules/pkgs/firefox-extensions/deutsch-de-language-pack.nix
@@ -0,0 +1,18 @@
+{
+  lib,
+  buildFirefoxXpiAddon,
+  ...
+}:
+buildFirefoxXpiAddon rec {
+  pname = "deutsch-de-language-pack";
+  version = "145.0.20251106.194447";
+  addonId = "langpack-de@firefox.mozilla.org";
+  url = "https://addons.mozilla.org/firefox/downloads/file/4614311/deutsch_de_language_pack-${version}.xpi";
+  sha256 = "aaaa95c29984fb3802a5e7edb6b7e5020c391d81f389b8a8133c163959ea4299";
+  meta = with lib; {
+    description = "Firefox Language Pack for Deutsch (de) – German";
+    license = licenses.mpl20;
+    mozPermissions = [];
+    platforms = platforms.all;
+  };
+}
diff --git a/modules/common-modules/pkgs/firefox-extensions/dizionario-italiano.nix b/modules/common-modules/pkgs/firefox-extensions/dizionario-italiano.nix
index 6fb793c..4bfca14 100644
--- a/modules/common-modules/pkgs/firefox-extensions/dizionario-italiano.nix
+++ b/modules/common-modules/pkgs/firefox-extensions/dizionario-italiano.nix
@@ -7,8 +7,8 @@ buildFirefoxXpiAddon rec {
   pname = "dizionario-italiano";
   version = "5.1";
   addonId = "it-IT@dictionaries.addons.mozilla.org";
-  url = "https://addons.mozilla.org/firefox/downloads/file/1163874/dizionario_italiano-${version}.xpi";
-  sha256 = "ae75847ce65e7744ba44d5f7d98a18b81f61770a0fdfc6d06bae8b7239535ee0";
+  url = "https://addons.mozilla.org/firefox/downloads/file/3693497/dizionario_italiano-${version}.xpi";
+  sha256 = "90b173ffdde34a77108152a5ff51879767b1dd84e0aa0dfb7b2bab94cd2e7f53";
   meta = with lib; {
     description = "Add support for Italian to spellchecking";
     license = licenses.gpl3;
diff --git a/modules/common-modules/pkgs/firefox-extensions/italiano-it-language-pack.nix b/modules/common-modules/pkgs/firefox-extensions/italiano-it-language-pack.nix
index 765368c..35f4243 100644
--- a/modules/common-modules/pkgs/firefox-extensions/italiano-it-language-pack.nix
+++ b/modules/common-modules/pkgs/firefox-extensions/italiano-it-language-pack.nix
@@ -5,10 +5,10 @@
 }:
 buildFirefoxXpiAddon rec {
   pname = "italiano-it-language-pack";
-  version = "132.0.20241110.231641";
+  version = "145.0.20251106.194447";
   addonId = "langpack-it@firefox.mozilla.org";
-  url = "https://addons.mozilla.org/firefox/downloads/file/4392453/italiano_it_language_pack-${version}.xpi";
-  sha256 = "2b4764045daa62b00de8773fdfb03b5bbc1cd62c42f8fa27ef70c412d549dbe6";
+  url = "https://addons.mozilla.org/firefox/downloads/file/4614309/italiano_it_language_pack-${version}.xpi";
+  sha256 = "1eb271cedbf326543e222ba1b9a1da62fceef9d3c523ac02a098df296f155038";
   meta = with lib; {
     description = "Firefox Language Pack for Italiano (it) – Italian";
     license = licenses.mpl20;