anchor.diff:  
     firefox-unwrapped = common {
       pname = "firefox";
  -    version = "45.0.2";
  -    sha512 = "8c0b7afb41a1a405fe499299d1a8b1138dac52b9ad67bfc8761b70a26f330581c2aa1d76d67075896ec3a0c3f5367b8b58365ebc8b3a01f801fa37071b3de526";
  +    version = "46.0";
  +    sha512 = "f5a652e25fa74e3cb271af04d50cc7b63ca73fde9d2ff350e84b3dda55352bac2b28b567aed12164285d992414ad475da9d2555ab972e5c5d7b8f5226591036b";
     };
   
     firefox-esr-unwrapped = common {
  
positive.code:       "--with-system-nspr"
        "--with-system-nss"
        "--with-system-libevent"
        "--with-system-libvpx"
        "--with-system-png" # needs APNG support
        "--with-system-icu"
        "--enable-system-ffi"
  
negative.code:       alsaLib nspr nss libnotify xorg.pixman yasm mesa
        xorg.libXScrnSaver xorg.scrnsaverproto pysqlite
        xorg.libXext xorg.xextproto sqlite unzip makeWrapper
        hunspell libevent libstartup_notification /* libvpx */ /* cairo */
        gstreamer gst_plugins_base icu libpng jemalloc
        libpulseaudio # only headers are needed
      ]
  