The Technical Stuff

How does AdBlock work?
Please see our blog for more about how ad blocking works and how you can make the most of AdBlock. AdBlock, like all ad blockers, relies on filter...
Thu, 30 Aug, 2018 at 8:46 PM
Where can I find CatBlock?
CatBlock was an extension based on AdBlock that replaced ads with either cat pictures or pictures of your choice from Flickr. It was originally introduced a...
Tue, 17 Nov, 2015 at 8:27 PM
What do the "Other filter lists" do?
AdBlock comes with basic ad filter lists enabled by default. You can find additional filter lists that block other ads and annoyances in AdBlock's opti...
Sun, 14 Feb, 2016 at 3:25 PM
Does AdBlock actually stop ads from being downloaded?
Yes! Ad scripts, images, and Flash are not sent to your computer, saving you bandwidth and making web pages load faster! In some cases it's not p...
Tue, 17 Nov, 2015 at 8:08 PM
Can my website be added to the whitelist?
"Add a website to the whitelist" can have different meanings depending on your situation. (By the way,  if you came here looking for an answer to ...
Mon, 15 Feb, 2016 at 12:27 PM