![]() What is the worst possible scenario? Google could no longer contribute to Chromium and develop Chrome as a closed source hard fork, directing all patches to Chrome while it’s still dominant. Chromium is open source, that means it can be modified by you as you see fit. ![]() Please clarify what you mean by “monopoly”. Now What makes you so giddy about any single browser having an effective monopoly? The extension, which its developer claims operates best under Firefox, is the most popular extension for Firefox based on the number of installations and ratings. That is good news for users of the web browser who use content blockers such as uBlock Origin. In "These weeks in Firefox: issue 124", the organization confirms that it will support the WebRequst API of Manifest v2 alongside Manifest v3.Īgain, a reminder that Mozilla plans to continue support for the Manifest v2 blocking WebRequest API (this API powers, for example, uBlock Origin) while simultaneously supporting Manifest v3. Mozilla reaffirmed this week that its plan has not changed. Users who install a single content blocker and no other extension that relies on the same relevant API may not notice much of a change, but those who like to add custom filter lists or use multiple extensions that rely on the API, may run into artificial limits set by Google.ĪdGuard launched a Manifest v3 compatible ad-blocker recently, and it will display warning prompts if its operation is limited in the browser. While Manifest v3 does not mean the end for content blocking on Chrome, Edge and other Chromium-based browsers, it may limit abilities under certain circumstances. Used by content blockers extensively to filter certain items, it has been replaced by a less powerful option in Manifest v3. Probably the most important of them all is the WebRequest API. ![]() Mozilla announced early on that it will support Manifest v3 as well, but that it would continue to support important APIs that Google limited in Manifest v3. Those offered on the Chrome Web Store will vanish, unless their developers published an update to make them compatible with the new Manifest v3. Those installed will be disabled automatically, because they are no longer compatible. There is an Enterprise policy to extend the blocking of Manifest v2 support in Chrome by six months, but Google announced already that it won't extend that, despite delays in getting all APIs out in the open for developers.īy June 2023, Chrome and most Chromium-based browsers won't support Manifest v2 extensions anymore. From January 2023 on, extensions need to support Manifest v3 exclusively to be listed in the Chrome Web Store. Google is using its might to push Manifest v3, and most Chromium-based browsers, including Microsoft Edge, will follow. Hopefully, though, with ABP aware of the issue, they might be able to fix it.Current Chromium extensions use Manifest V2 for the most part, even though the January 2023 deadline is looming over the heads of every extension developer. For some, the performance hit is worth the privacy protection and never seeing obtrusive ads again, but I'm a heavy tabs user and would rather see ads than have to restart Chrome all the time. This is despite the fact that ABP prevents some page elements (ads!) from being loaded.Ī Chrome developer going by the handle "Klathmon" also suggests on Reddit that ad-blockers all inherently use up a lot of memory, and AdBlock acknowledges in this post that this memory consumption is a problem.Ĭhrome likes to crash on me every now and then, and sometimes I have to turn ABP off if the page has trouble loading or isn't formatted correctly. With ABP, that number more than doubles, to 417 MiB. For example, if I load TechCrunch and roll over the social buttons on every story (thus triggering the loading of lots of extra JS code), without ABP, Firefox uses about 194 MiB of physical memory. Many pages have multiple iframes, so this can add up quickly. Second, there’s an overhead of about 4 MiB per iframe, which is mostly due to ABP injecting a giant stylesheet into every iframe. (This is on 64-bit builds on 32-bit builds the number is probably a bit smaller.) This appears to be mostly due to additional JavaScript memory usage, though there’s also some due to extra layout memory. Mozilla developer Nicolas Nethercote explains why ABP is so CPU- and memory-intensive:įirst, there’s a constant overhead just from enabling ABP of something like 60–70 MiB. But its ad-blocking benefits come with a price: very high CPU and memory usage, which could be a big problem if you're surfing around on a computer without high-end resources. ![]() AdBlock Plus is the most popular extension for Mozilla Firefox and Google Chrome. ![]()
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