Yeah Fx is not just tabs, there are an insane amount of features that many people do not know about. You can customize firefox to pretty much do whatever you want. One thing I like is a feature called keywords. You can bookmark a site and give it a keyword of "sd" for slashdot, or whatever you want. Then if you want to goto slashdot you just have to type "sd" and press enter (without the quote marks). You can also do this for searches. For example, I have google setup so that I can type "g firefox rocks" and I will be taken to a google search of "firefox rocks" You can do this for pretty much any search and any webpage. Also, as you can see in my screenshots, I do not really use the refresh, home, forward, etc., buttons. Instead I have removed them, moved up my location bar, and now use mouse gestures for those actions and a few others. The features go on and on, but you will not know what you are missing out on until you try it for yourself.