anchor.diff:  , gtk3
   }:
   
  +# Only specific GCC versions are supported with branding
  +# https://developer.palemoon.org/build/linux/
  +assert stdenv.cc.isGNU;
  +assert with lib.strings; (
  +  versionAtLeast stdenv.cc.version "4.9"
  +  && !hasPrefix "6" stdenv.cc.version
  +  && versionOlder stdenv.cc.version "11"
  +);
  +
   let
     libPath = lib.makeLibraryPath [
       ffmpeg
  
positive.code:       extensions and themes to make the browser truly your own.
      '';
      homepage = "https://www.palemoon.org/";
      license = licenses.mpl20;
      maintainers = with maintainers; [ AndersonTorres OPNA2608 ];
      platforms = [ "i686-linux" "x86_64-linux" ];
  
negative.code: { stdenv
  , lib
  , fetchFromGitHub
  