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Filterset.G was a third-party set of filters for ad filtering extensions such as Adblock used with Firefox web browser.[1] The filterset contained pre-made and regularly updated filters that removed ads from various ad providers. Unlike Adblock and Mozilla Firefox, Filterset.G is not open source; the filters were only free for personal, non-commercial use, and redistribution of it is not permitted. The service was discontinued on February 3, 2008, as the owner could not afford the expenses that running the site cost.[citation needed]


Filterset.G was created and maintained by Graham Pierce[2] (who usually goes by the name "Pierceive" or "G"[citation needed]). It was the first major filter list available for Adblock, dating from July 2004.[3] The list grew out of a shared list of personal filters and feedback from its users.[3] A companion extension, Adblock Filterset.G Updater, was created for it by Micheal McDonald and Reid Rankin in order to simplify the task of keeping the latest list updates loaded into Adblock, which did not contain update functionality at the time.[4]

When Adblock Plus, which does contain automatic update functionality, was released, Graham Pierce decided to make Filterset.G incompatible with the new built-in update function, requiring users to run the Adblock Filterset.G Updater extension to use his filterlist. This was done in order to control the frequency of update checks and route downloads through the Coral CDN, in order to prevent the large number of users who subscribed to Filterset.G from overloading its server's bandwidth.[citation needed]

Other browsers[edit]

Filterset.G was compatible with the native ad-blocking facility in KDE's Konqueror web browser from release 3.5 onwards. It was also part of Epiphany-extensions' Ad Blocker extension for GNOME's Epiphany browser. It was also possible to use it with Safari via third-party plug-ins.[5]

See also[edit]


  1. ^ "Review: Top 10 Mozilla Firefox Extensions". 31 July 2006. Retrieved 12 December 2016. 
  2. ^ Moritz Zielenkewitz (2006-08-08). "Nerv nicht rum: Werbung optimal blocken mit Firefox-Erweiterungen". Retrieved 2007-06-28. 
  3. ^ a b Balachander Krishnamurthy, Craig E. Wills (2006). "Cat and mouse: content delivery tradeoffs in web access". Proceedings of the 15th international conference on World Wide Web. International World Wide Web Conference. pp. 337–346. doi:10.1145/1135777.1135829. ISBN 1-59593-323-9. 
  4. ^ Wladimir Palant (2006-11-23). "Sorry Filterset.G but it is time for you to go". 
  5. ^ "Safari AdBlock Project Page". [unreliable source?]

External links[edit]