Mozilla released Firefox 1.1 Web Browser for Nokia N900 and N810 for Maemo-based devices such as the Nokia N810 and the more recent Nokia N900. There are only a few new things brought by the latest mobile version of the popular web browser but those are certainly worth a look.
You may download Firefox 1.1 directly on your Nokia N900 through browsing the link Firefox.com/m.
Video Demonstration of Firefox 1.1 on Nokia N900