Annoyed by adverts? Troubled by tracking? Bothered by banners? Install Adblock Plus now to regain control of the internet and change the way that you view the web.
The most popular Firefox add-on! Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them. Right-click on a banner and choose Adblock from the context menu — the banner will not be downloaded again. You can even replace parts of the banner address with star symbols to block similar banners as well. Or choose a filter subscription which will block most advertisement automatically.
How it Works
Like Mozilla’s built-in image blocker, Adblock blocks HTTP requests according to their source address and can block IFrames, scripts, and Flash. It also uses automatically-generated user stylesheets to hide elements such as text ads on a page as they load instead of blocking them, known as element hiding

Works with:

• Thunderbird 3.0 – 7.0a1
• SeaMonkey 2.0 – 2.4a1
• Mobile 1.1 – 7.0a1
• Firefox 3.5 – 7.0a1

What’s new in Adblock Plus

The following lists the changes compared to Adblock Plus 1.3.9

• * Added experimental support for Firefox Sync
• * New extension icons
• * Updated for changes in Thunderbird 5
• * Various minor fixes

Detailed changelog: http://adblockplus.org/en/changelog-1.3.9