Yes Friends It Is True
A plugin is available for FireFox 3.0 called Check All but it doesn’t work in FireFox 3.6 that I’m currently using. After another plugin search I found an experimental plugin which is an updated version of Check All and you can find it here. There is another one here (thanks backy). Mozilla will give you all types of warnings about the first plugin, saying it hasn’t been verified and that your computer might grow legs and jump out the window if you install it. It works just fine. Install it. Restart FireFox,
Next go to ManageFlitter and login via Twitter Oauth. Click “Show All” and you’ll be presented with a list of your followers in pages of 100 with a checkbox next to each and an Unfollow button on the left. Hit Ctrl+A (Select All, yes baby), right click on a highlighted area and you’ll see the new plugin option “Check (1st option)”, click Unfollow.
Unfollowing 100 people on Twitter in one go is a beautiful thing to behold. 
Click Next, Ctrl+A, Right Click, Select All Checkboxes, Unfollow. Boom, another 100 Tweeps bite the dust. Rinse and repeat. I got it down to 5 seconds per page, that’s a 1,000 in under a minute. Bye Tweeps.
