Again, not the usual GOTD bauble, this is useful, it has been recommended in dotTech posts (see: /tipsntricks/17516/#comment-45580).

According to the promoter:

• Blocks ads in all browsers, including Internet Explorer, Firefox, Opera, Google Chrome, Safari, Flock, Netscape, Maxthon and Avant Browser.
• Kills unwanted popups in all browsers.
• Removes advertising in programs like Pando, SopCast, ICQ, Morpheus, Kazaa, PalTalk, iMesh, Bearshare, LimeWire, Yahoo! Music Jukebox, TVAnts and more.
• Speeds up page loading and saves bandwidth, thanks to the missing ads and pop up windows.

It can be found at: http://www.giveawayoftheday.com/ad-muncher-basic/

Note 1:  Because of the aforementioned server problems, when you register you get message that you will get the code at the end of the promotion period.  I do hope so, because it looks even better than AdBlock Plus.

Note 2:  Firefox version 8.0 says it isn't compatible.  Add-on Compatibility Reporter says it is and makes it work.

Enjoy