No add-on needed, High Speed.

Porque é simples e leve.

The latest update has stopped it working and every time I open Firefox I get a page telling me that I now need to download another program in order for it to work with Google Chrome!
Uninstalled and installed version 49.0 from the history list and it works fine with Firefox 56.0 for now.
5 stars because I like it and it's just this update that has bug****d it up.