Adblock Plus and (a little) more

Cambridge Analytica, Facebook, Your Data and You · 2018-03-22 14:50 by Tom Woolford

Adblock Plus discusses the Facebook / Cambridge Analytica data scandal, and what you should do to keep your data safe.

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Adblock Plus 3.0.2 for Firefox released · 2017-12-12 10:42 by Dave Barker

Install Adblock Plus 3.0.2 for Firefox

This release features a number of bug fixes, some of which work around limitations of Firefox’s new Web Extensions API. Additionally, there are some minor improvements to the options page, aiming to address some of the feedback from both our users and the Electronic Frontier Foundation.


  • Fixed the “Block element” tool for Windows users (issues 6053 and 5817, corresponding to Firefox bugs 1418394 and 1418655 respectively).
  • Fixed blocking of WebRTC connections on websites using CSP security mechanism, works in Firefox 58 and higher now (issue 5953, Firefox bug 1406278).
  • Made sure that filter list downloads and other requests performed by the extension cannot be blocked (issue 6010).
  • Fixed subscription link handling for Windows users (issue 5965).
  • Fixed a bug which caused the mobile options page to be zoomed incorrectly (issue 6046).
  • Fixed a bug which caused the desktop popup window to open instead of the mobile options page with Firefox 57 for Android and higher (issue 5977).
  • Improved our Developer Tools panel, fixing a bug which prevented viewing the requested resource (issue 6035) and improving the quality of the icon (issue 6036).
  • Improved the layout of the options page (issue 5872), fixed the page title (issue 5972) and added a warning for users who subscribe to both the Easy Privacy and Acceptable Ads filter lists (issue 6031).
  • Firefox 50 is no longer supported, the options page is essentially broken there without a way to fix it (issue 5971, Firefox bug 1209869).

Known issues

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How to Use Adblock Plus in Private Mode · 2017-11-27 17:47 by Shannon Sewell Bell

Did you know that you can use Adblock Plus in Private mode? You’ve probably switched to private mode in the past and noticed that Adblock Plus wasn’t there. You will first need to activate it for ABP in order to use it there. Follow the steps below to activate Adblock Plus while in private mode.

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Adblock Plus 3.0.1 for Firefox released · 2017-11-08 15:41 by Wladimir Palant

Install Adblock Plus 3.0.1 for Firefox

This release adds many translations which were missing in the Adblock Plus 3.0 release. There are no changes beyond that.

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Adblock Plus browser add-on gets comfy with Firefox 57 · 2017-11-06 15:00 by Rachel Brochado

As Firefox fans and users know, Firefox will release version 57 later in November. The new version of the browser will only allow add-ons that are compatible with the WebExtensions API, so the Adblock Plus development team has already been busy getting our award-winning add-on ready.

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Adblock Plus 3.0 for Firefox released · 2017-11-06 14:21 by Wladimir Palant

Install Adblock Plus 3.0 for Firefox

With Mozilla disallowing classic extensions in Firefox 57, Adblock Plus 3.0 is our first version based on the Web Extensions framework as announced before. The significant changes introduced here are unfortunate but sadly unavoidable. This is particularly visible in the user interface:

  • The ABP icon in the toolbar will now display the number of blocked ads (optional, can be disabled). This replaces the status information in the tooltip.
  • The toolbar icon will no longer open a native menu but rather a pop-up. This one uses an old design, we want to improve it soon.
  • The options page is not a native dialog but a web page now. It should be easier to use, but it is lacking much of the functionality that Firefox users got used to. We plan to add more functionality to it in future.
  • The issue reporter works mostly the same as it did before, but it won’t flag common issues locally at this point. Also, it will collect less information than it did before. We’ll keep improving it.
  • The “Block element” dialog offers less assistance than it did before, we will improve that as well.

As to the good news:

With this being a massive change, there are some known issues left which should be addressed in another release soon:

  • The “Block element” dialog doesn’t work in Firefox 57 under some circumstances (issue 5817).
  • On Firefox 57 for Android, the Adblock Plus menu item opens the (partly dysfunctional) pop-up rather than the options page (issue 5977).
  • In older Firefox versions such as Firefox 50, saving custom filters won’t update the list and you need to reload the options page to see your changes (issue 5971).
  • abp:subscribe links sometimes won’t work in Firefox 57 (issue 5965).

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Web Extensions builds are now the official Adblock Plus for Firefox development builds · 2017-08-24 13:43 by Wladimir Palant

A while ago we announced our plan to migrate to the Web Extensions platform. With the current Firefox nightly builds being incompatible to classic add-ons already, we need to move a bit prematurely. So starting with Adblock Plus development build, our development builds will be using the Web Extensions platform. If you are on Firefox 57, make sure to install the latest Adblock Plus development build and it will be working again.

There are some drawbacks here. Most notably, the user interface will be more limited than what you are used to. The work improving the options page is almost done and should land soon, other parts of the user interface will follow. Still, disabling individual filters won’t be back for a while, which is why we are re-enabling any filters you might have disabled in subscriptions. Disabled custom filters will be automatically replaced by comments. We also remove any automatic backups (not the manual backups) you might have, these degrade Firefox performance and currently cannot be recovered anyway.

The other important drawback is very limited Android support. There is ongoing work both on our and Mozilla’s side here, so things should improve very soon.

To the install page

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The semi-authoritative, semi-complete history of the Adblock Plus project · 2017-06-27 18:38 by Wladimir Palant

Which one was first, Adblock or Adblock Plus? If Adblock Plus was created in 2006, how come there was Adblock Plus in 2005 already? The history of the Adblock Plus project isn’t straightforward and I already tried to explain it once. The article titled A not so short history of Adblock would have made a good blog article, except… it got published too early, before the Adblock Plus blog was created. And so it ended up on the website under “Documentation” where it was eventually removed because it wasn’t a good match. Here comes another attempt, looking back at more than ten years of project history.

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Adblock Plus 2.9.1 for Firefox released · 2017-06-07 20:11 by Wladimir Palant

Install Adblock Plus 2.9.1 for Firefox

Unfortunately, the Adblock Plus 2.9 release didn’t go as smoothly as we hoped for. Most importantly, the performance degradation caused by the new data storage turned out more severe than we expected, some users were experiencing regular noticeable browser hangs. While the performance of reading and saving Adblock Plus filters hasn’t improved yet, we turned off filter hit counts by default in Adblock Plus 2.9.1 as a first consequence to make sure the data no longer needs to be saved that often (issue 5298). Users who need this functionality can turn it back on by clicking the ABP icon, going into “Options” and checking “Count filter hits.” We will be looking into other ways to improve this, even though the main issue can only be resolved by the Firefox developers.

It also wasn’t noticed before release that the new data storage doesn’t work in Thunderbird and SeaMonkey, so these users ended up with filters being reset on each restart. This has also been resolved in Adblock Plus 2.9.1 (issue 5279, issue 5285), the original data should show up again now. Some users are reporting similar issues in Firefox, a problem we couldn’t reproduce so far. If you are experiencing data loss on Firefox and are willing to let me debug the issue on your computer (via TeamViewer or a similar desktop sharing tool), please let me know in the comments below.

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Fixing Adblock Plus 2.9 for Thunderbird and SeaMonkey users · 2017-06-01 14:23 by Wladimir Palant

Adblock Plus 2.9 introduced very significant changes to the data storage. The unfortunate side-effect was that Adblock Plus was broken for Thunderbird users as well as users on pre-release SeaMonkey versions, and nobody noticed before the release. After we discovered a problem with our original fix, as of Adblock Plus development build things should work correctly on all platforms. This being a rather non-trivial change, your feedback is appreciated. If no other issues pop up we plan to release Adblock Plus 2.9.1 next Tuesday, June 6.

To the install page

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