One of the main reasons for using Firefox is its fabulous ad blocking extension. Not it is not a reason not to use other browsers here is a list of ad blocking software available for every major browser:
- Firefox – AdBlock Plus or AdSweep
- Internet Explorer – InPrivate Filter or IE7Pro
- Chrome – AdSweep
- Opera – AdSweep
- Safari – AdSweep
AdSweep uses user scripts to block ads. So it works on all browsers that support user scripts: that is all of them. 
But it is a bit tricky to install.
Hmmm… What would happen to Google if everyone used these ad blocking software?
Related posts:
- Opera browser is now free
- Canvascape 3D Walker: A game in a browser
- Google Chrome is my default browser
- Why FireFox is not my default browser?
- 6 Web Browsers for E71