diff --git a/fixups.nix b/fixups.nix
index 155b140..ae14419 100644
--- a/fixups.nix
+++ b/fixups.nix
@@ -1,2 +1,20 @@
 (pkgs: super: {
+  # with pkgs.lib.firefoxOverlay; firefoxVariants.firefox-bin // { info = versionInfo firefoxVariants.firefox-bin; }
+  firefox-109 = pkgs.lib.firefoxOverlay.firefoxVersion {
+    info = {
+      chksum = "https://download.cdn.mozilla.net/pub/firefox/releases/109.0/SHA512SUMS";
+      chksumSha256 = "0f851278012fb0ed7b7d9fb380a500d3a4dc51b6bc54cae4ec0b8d5bb49540fd";
+      chksumSig = "https://download.cdn.mozilla.net/pub/firefox/releases/109.0/SHA512SUMS.asc";
+      chksumSigSha256 = "9d1c34b74e7f921b0e10a00afbcb3083699da06c969e45ea1315228b8c613d11";
+      file = "linux-x86_64/en-US/firefox-109.0.tar.bz2";
+      sha512 = "570e54faf9508fe77ba21e97b2e75198349012498e4339066f99d2059cb6021c0a25c9212706d28bd605dfd9d800587767253bf466a90b3ef94f79334b4e9acc";
+      sig = null;
+      sigSha512 = null;
+      url = "https://download.cdn.mozilla.net/pub/firefox/releases/109.0/linux-x86_64/en-US/firefox-109.0.tar.bz2";
+    };
+    name = "Firefox";
+    release = true;
+    version = "109.0";
+    wmClass = "firefox";
+  };
 })
diff --git a/home-manager/desktop.nix b/home-manager/desktop.nix
index eea74b7..2b5ea00 100644
--- a/home-manager/desktop.nix
+++ b/home-manager/desktop.nix
@@ -164,7 +164,8 @@ in {
 
   programs.firefox = {
     enable = true;
-    package = pkgs.latest.firefox-bin;
+    # TODO (update) remove
+    package = pkgs.firefox-109;
   };
   home.sessionVariables = {
     MOZ_USE_XINPUT2 = "1";