Google just released its popular Toolbar for Firefox. The Toolbar includes almost all features from its Internet Explorer brother, it only lacks the pop-up blocker but Firefox already includes one.
Google Toolbar for Firefox in 10 languages for three operating systems (Windows, Mac and Linux). Self-congratulatory urges aside, the developers of Toolbar for Firefox marvel at how well-suited the Firefox XUL programming language was to their task.
They say that a small team that had never worked together, or used XUL, were able to create a product quickly that works across languages and platforms from a single ~250K download.