
Background images, scripts and stylesheets could be blocked through this approach as well. ĪdBlock 0.5, 2004, used content policies for ad blocking which prevented the ads from being downloaded instead of simply hiding them. This was a developer build and not a stable release as were subsequent further versions (either released as nightly or development builds) making Adblock 0.3 the last stable release. But as with the original version the ads were still able to be downloaded. This version used XBL to hide the ads and with this object like Flash or Java could also be blocked. Starting with Adblock 0.4, in early 2003, the development of AdBlock was taken over by a developer who went by the pseudonym rue online. This was also the last stable release of Adblock. Sørensen maintained the open-source project until Adblock 0.3 after which the project changed hands. It hid image ads through user-defined filters from the page but did not actually prevent them from being downloaded. The original version of Adblock (0.1) was written as a side project for Firefox by Danish software developer Henrik Aasted Sørensen, a university student at the time, in 2002.

While participation in the whitelisting process was free for small websites, large advertising companies were required to pay a fee in order for their ads to be whitelisted.

In 2011, Adblock Plus and Eyeo attracted considerable controversy over its "Acceptable Ads" program to "allow certain non-intrusive ads" (such as Google Ads) to be allowed under the extension's default settings. The extension has been released for Mozilla Firefox (including mobile), Google Chrome, Internet Explorer, Microsoft Edge ( Chromium based version), Opera, Safari, Yandex Browser, and Android. It is developed by developer Wladimir Palant's Eyeo GmbH, a German software company.

Preferences dialog box of Adblock Plus showing a group of filtersģ.16.1 / February 3, 2023 2 months ago ( ) Ģ.2.3 / February 28, 2023 59 days ago ( ) ġ.6 / January 3, 2017 6 years ago ( ) ġ.3 / March 3, 2015 8 years ago ( ) ġ.2.0 / March 5, 2019 4 years ago ( ) Īdblock Plus ( ABP) is a free and open-source browser extension for content-filtering and ad blocking.
