Firefox users have now received official support from Google with its release of the
Google toolbar especially suited for the open-source browser. Before this, users wanting to have a similarly featured toolbar had the option of installing
Googlebar, an open-source toolbar written by Google fans.
Apparently, Google programmers
rejoiced using the XUL programming language, as they were able to build the Google Toolbar for Firefox packing 10 languages for three operating systems (Windows, Mac and Linux) on a single ~250K download.