Besides being a kick ass browser, there are also extensions available to do more while having the browser open. There are only a few that I use which are extremely helpful to me. The first being the webdev toolbar. Adds some nifty features for viewing and editing css, html and other parts of an HTML page. Yet another that I find nice to use is add block which lets you block even the most annoying flash ads and others. Super nifty.
There is a new one on the block that I’ve been using for about 5 minutes but it rocks! It’s called FoxyTunes and lets you control your media player right from the browser window! Supports about a dozen players including WMP, MusicMatch, iTunes and WinAmp. Definitely worth checking out if you listen to music while surfing!