diff --git a/home/firefox/default.nix b/home/firefox/default.nix
index 1f35219..d47ffd1 100644
--- a/home/firefox/default.nix
+++ b/home/firefox/default.nix
@@ -41,8 +41,6 @@ in {
 
         # Prefs
         "layout.css.devPixelsPerPx" = 1.12;
-        "browser.tabs.firefox-view" = false;
-        "browser.tabs.firefox-view-next" = false;
         "browser.search.widget.inNavBar" = true;
         "browser.toolbars.bookmarks.visibility" = "always";
         "browser.toolbars.bookmarks.showInPrivateBrowsing" = true;
diff --git a/home/firefox/firefox-gx/default.nix b/home/firefox/firefox-gx/default.nix
index a6cc30d..7acf886 100644
--- a/home/firefox/firefox-gx/default.nix
+++ b/home/firefox/firefox-gx/default.nix
@@ -2,35 +2,33 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
-}: let
+}:
+stdenvNoCC.mkDerivation rec {
   pname = "firefox-gx";
-  version = "c1d9888d27543ded51f9854d7e58db601fd33d43";
-in
-  stdenvNoCC.mkDerivation {
-    inherit pname version;
+  version = "9.0";
 
-    src = fetchFromGitHub {
-      owner = "Godiesc";
-      repo = pname;
-      rev = "${version}";
-      sha256 = "sha256-FCx5mADqrjAN27lLaZViOFGUNDg/2jpern8sem8u49w=";
-    };
+  src = fetchFromGitHub {
+    owner = "Godiesc";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-FCx5mADqrjAN27lLaZViOFGUNDg/2jpern8sem8u49w=";
+  };
 
-    installPhase = ''
-      # Personal changes
-      sed -i 's/var(--fuchsia))/var(--purple))/' ./chrome/components/ogx_root-personal.css
+  installPhase = ''
+    # Personal changes
+    sed -i 's/var(--fuchsia))/var(--purple))/' ./chrome/components/ogx_root-personal.css
 
-      # Fix new tab background for nix
-      substituteInPlace ./chrome/components/ogx_root-personal.css \
-        --replace '../newtab/wallpaper-dark.png' "$out/chrome/newtab/private-dark.png"
+    # Fix new tab background for nix
+    substituteInPlace ./chrome/components/ogx_root-personal.css \
+      --replace-fail '../newtab/wallpaper-dark.png' "$out/chrome/newtab/private-dark.png"
 
-      mkdir -p $out
-      cp -r ./* $out
-    '';
+    mkdir -p $out
+    cp -r ./* $out
+  '';
 
-    meta = with lib; {
-      description = "Firefox Theme CSS to Opera GX Lovers";
-      homepage = "https://github.com/Godiesc/firefox-gx";
-      license = licenses.mspl;
-    };
-  }
+  meta = with lib; {
+    description = "Firefox Theme CSS to Opera GX Lovers";
+    homepage = "https://github.com/Godiesc/firefox-gx";
+    license = licenses.mspl;
+  };
+}