Seperate firefox profiles for trusted / work / general

modules/user/modules/firefox/theme.nix

@@ -0,0 +1,30 @@
+{ pkgs, name, theme }: let
+  json = builtins.toJSON {
+    manifest_version = 2;
+    version = "1.0";
+    browser_specific_settings.gecko = {
+      id = "theme-${name}@outfoxxed.me";
+    };
+
+    inherit name theme;
+  };
+
+  jsonFile = pkgs.writeTextFile {
+    name = "manifest.json";
+    text = json;
+  };
+in pkgs.stdenvNoCC.mkDerivation {
+  pname = "firefox-theme-${name}.xpi";
+  version = "1.0";
+  preferLocalBuild = true;
+  unpackPhase = "true";
+
+  buildPhase = ''
+    cp ${jsonFile} manifest.json
+    ${pkgs.zip}/bin/zip out.xpi manifest.json
+  '';
+
+  installPhase = ''
+    mv out.xpi $out
+  '';
+}