Nevertheless, it appears that, when it comes to AdBlock Plus and Firefox, it’s just not a good marriage. Perhaps this effect applies to some browsers, but not others, and other variables that are unaccounted for may be playing a role here as well. The same goes for Google Chrome, which stayed near the 50MB mark whether we had AdBlock Plus enabled or disabled, though ExtremeTech’s Chrome test results reflected a pattern of behavior similar to Firefox’s. However, when we tested this with Opera, RAM usage stayed the same, hovering between 152MB and 154MB. When we conducted our own tests, RAM consumption in Firefox dropped from roughly 630MB with the add-on enabled, to about 525MB when we disabled it. In Nethercote’s tests, RAM usage, with AdBlock Plus enabled, doubled in one case, and spiked even more drastically in another, though they were conducted using Firefox only. With this in mind, it’s easy to see how your computer could start to choke in a flash. Multiply that by the number of ads that exist on your average Web page these days, and then factor in the number of browser tabs people usually have open. An iframe is an HTML document that allows multiple documents from different sources to appear on the same website that’s how you can have one ad for Huggies, and another ad for Six Flags on the same page. According to Nicholas Nethercote, a developer for Mozilla, AdBlock Plus blocks ads by swapping each iframe on whatever website you’re using with another (roughly) 4MB document in order to keep that ad from appearing. Though add-ons like AdBlock Plus prevent a lot of ads from popping up, because of the way it goes about blocking those ads, your computer might be using more resources than it would be if you were to turn the add-on off. The reason why ad blocking browser add-ons and extensions are so popular, aside from the fact that people generally don’t want to see ads, is that fewer ads means there are more system resources for your Mac or PC to take advantage of, right? For AdBlock Plus, that may not exactly be the case, at least when it comes to using it with Firefox. Why doesn't AdBlock block spam from reaching my mailbox?.Why doesn't AdBlock work on the New Tab and other internal browser pages?.Concerns about AdBlock and browser speed.AdBlock installation is blocked by the administrator.Google Docs keyboard shortcuts and the AdBlock menu.The Google search results page is blank or pressing the Back button loads a blank page.Blank spaces when ads are blocked by AdBlock.A pop-up window told me my computer has a virus and my personal information is being stolen!.Pros: Proven effectiveness and popularity Well-established Cons. However, a big concern with AdBlock Plus is that it uses a default list of 'acceptable' adsthese are pay-to-play ads sponsored by AdBlock Plus.
I'm seeing a pop-up that asks if I want to hide targeted messages Adblock Plus is a Google Chrome extension, which allows the user to set how strictly Adblock Plus blocks ads.Why am I still seeing your payment page when I reinstall AdBlock? How to pin the AdBlock menu to your browser.This should make sure you're installing a clean copy of AdBlock after removing any trace of malware the bad extension may have left behind. To install the real AdBlock, visit and click Get AdBlock Now.Remove malware from your computer, if needed.Confirm that sync no longer installs the extension automatically (if it does, try these suggestions).Open your browser (if you sync your browser settings across computers, be sure you're signed in to your synced profile).If you believe you may have downloaded a fake version of AdBlock, here's what we recommend you do: And unfortunately, there have been issues with fake ad blockers pretending to be popular ad blockers (such as AdBlock) for the sole purpose of spreading malware. AdBlock is open source software, which means that anyone can take our code and use it for their own, sometimes nefarious, purposes.
If you installed AdBlock (or an extension with a similar name to AdBlock) from anywhere else, it may contain adware or malware that can infect your computer.
The official browser extension stores and our website,, are the only safe places to get AdBlock.