Optimize Adblock Filter List
The filter list of Adblock plus contains the websites that you do not want to block ads on. This can be due to several reasons. You might be a webmaster who wants to make sure that ads are running correctly on his system and also find out which ads are running on it or you might have troubles viewing a rich media site if you do not add the site to the filter list.
Whatever the reasons may be, the filter list can be problematic especially if you take duplicate entries into consideration. The Adblock Filter List Optimizer changes that by optimizing the filter list by removing duplicates and reducing the number of lines and words contained in the filter list.
Just head over to the Adblock Website, export your filter list in Firefox and paste it into the form there. Click on optimize and you should see the results just a second later. Import the filter list again after saving it in a text file and overwrite the old one in the process.
via Ghacks
Wladimir Palant said...
The site you are recommending is neither associated with the Adblock nor with the Adblock Plus project - it is just a service somebody put up for users of the old Adblock. Using this optimizer with Adblock Plus is not recommended because the internal optimizer (that improves performance way more than you can do by changing the filter list) cannot optimize regular expressions.
What you really want should be these two tools:
http://adblockplus.org/en/deregifier
http://adblockplus.org/en/redundancy_check