The number provided by Google is sufficient if you have only one extension that relies on the declarative NetRequest API in Manifest V3 to block ads. Since at the heart of any ad-blocking extension are the filtering rules that ‘teach’ it to detect ads, such restrictions can become a real snag. As for user-added (“dynamic”) rules, they are capped at mere 5,000. Namely, Chrome has set a guaranteed minimum limit of 30,000 built-in (“static”) rules per extension and a total limit of 330,000 static rules. The problem with Manifest V3 is that it limits the number of built-in and user-added rules for extensions installed by an individual user. Google notes that this will prevent extensions, including ad blockers, from accessing “potentially sensitive user data,” and will make them “safer to everyone.” The downside is, this change will also cause ad blockers to lose some of their functionality. The new, narrower API gives the right to modify requests to the browser itself, while the extension simply announces or “declares” a set of rules by which the browser should respond. For example, previously the browser would ask a content-blocking extension what to do with a particular web request, and the extension would respond by either greenlighting, blocking or redirecting it. The API introduces significant changes to the rules that extensions have to follow, such as which browser features an extension has access to and can modify. It is now being implemented across Chromium-based browsers, including, of course, Google Chrome itself. Manifest V3 is Chrome’s new extension API, first announced in 2018. On the other hand, it allows content-blocking extensions that were originally built using the less restrictive Manifest V2 to continue working at full tilt.īefore we go any further, let us remind you what Manifest V3 is, and why it has drawn so much backlash from privacy advocates and content-blocking extension developers including AdGuard. On the one hand, by implementing Manifest V3 on its own terms, Mozilla saves developers who are switching to the new platform from having to support two different versions of their extensions (for Google Chrome and Firefox) at the same time. The new version of Firefox, which began rolling out last month, will ensure that users still have access to popular privacy-preserving tools, most notably content-blocking extensions. Please note that it is only useful on a limited set of websites, and it does nothing on the websites not from this list.Mozilla has made good on its promise to implement Google’s new extension platform, Manifest V3, in a way that does not compromise the functionality of ad blockers. Your browser should allow you to hide the icon if it annoys you. It provides no user interface save for the extension icon in the toolbar. Click on this link to install AdGuard Extra: Īlternatively, you can install the beta version of AdGuard Extra userscript: ImportantĪdGuard Extra is a companion extension, it is supposed to be used with a full-scale ad blocker like AdGuard or any other. Scroll settings page down and find "Inject Mode" there.Open Settings, switch mode to "Advanced". How to install AdGuard Extra Chrome or Chromium-based browser However, if you want to use it alongside AdGuard browser extension or any other ad blocker, you'll need to use an additional extension. Regular ad blocking rules do not allow us being as flexible as it's necessary, that's why AdGuard Extra was developed.ĪdGuard Extra comes pre-installed with all premium AdGuard versions for if you use it, you don't need to do anything. AdGuard Extra is a userscript (or a browser extension) that is supposed to fight ad blocking circumvention attempts which become more and more and popular.
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