I happen to think that Firefox is the best thing since sliced bread!
But each to his/her own, I say.
One of the add-ons for Firefox I use a bookmark synchronizer, Foxmarks Bookmark Synchronizer 2.0.45, a free download.
When I plug my notebook in to the home network, it automatically synchronises my bookmarks. So if I have logged on using the desktop it will pick up any new bookmarks, and likewise if I have saved any bookmarks on the notebook it will save those to the desktop.
Beaut little utility.
I also use NoScript, a real English(Australian) dictionary not the funny spelling handed down by MickeySoft and AllPeers.
Another real good plug-in is RealPlayer, play a YouTube video and if you want to save it to your computer it pops-up a video downloader.
Can't remember the last time I used IE.