My favorite Firefox extensions
Flashblock — Flash ads are even more annoying than animated GIFs, but there’s some nifty Flash stuff on the web as well. My old solution was to not install the Flash plugin in Firefox and just use IE whenever I encountered Flash content that I did want to load. With Flashblock, I can load individual Flash files with a single click.
Go Up — In IE, the Google toolbar has a handy “go up a level” button. This provides that function in Firefox.
Linky — When you want to open a large number of links in tabs, just select them, right click, and use the Linky submenu to do it all at once.
BugMeNot — Bypass “free registration required” sites like newspapers by right-clicking on the login box.
I used to use Tabbrowser Extensions, but there are hidden prefs in Firefox 1.0 that cover 95% of what I wanted, so I don’t bother with it any more.