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The extension is available for Firefox and Chromium-based browsers (such as Chrome, Edge, Brave, and Opera). uBlock Origin is actively developed and maintained
uBlock Origin - Free, open-source ad content blocker. Easy on CPU and memory. uBlock Origin is not just an “ad blocker“, it's a wide-spectrum content blo…
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uBlock origin 1.14.22 keeps refreshing my Facebook home page using Firefox 57.0.3. Did not do this when using Firefox 57.0.2. How do I stop it? uBlock or…
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uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.
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uBlock Origin Heads-up: this post is from 2015. uBlock Origin is still the right answer, but a lot changed since. Chrome killed Manifest V2 in mid-2025, …
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This is the uBlock Origin edition based on the much-maligned WebExtensions Manifest V3, which implements blocking declaratively instead of allowing/requi…
uBlock Origin is not an ad blocker; it's a general-purpose blocker. Furthermore, advanced mode allows uBlock₀ to work in default-deny mode, which mode wil…
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> Firefox will wait for uBO to be ready before sending network requests from already opened tab(s) at browser launch. > In Chromium-based browsers, this …
This is the community-maintained issue tracker for uBlock Origin
I believe it has nothing to do with competence, the hostility is pretty clear. IIRC R.hill had similar experience with Chrome Extension Store years ago. …
Yesterday I downloaded Firefox on my 2018 Macbook because Chrome slowed the thing down to an absolute crawl. What. A. Difference! Firefox is so snappy, an…
Featured Domain Ads Advertisement uBlock Origin Latest Articles Tens of millions of people can't see your domain landing pages. People interested in buyi…
uBlock Origin and other adblocker performance will never be as good on Chrome as they are on Firefox, since Chrome forced MV3 on users (which they pushed…
Sometimes, you want to stop scripts running only on specific domains. The best way to do that, I think, is with uBlock Origin - a free and fast ad-blocker…
You can add more rulesets by visiting the options page -- click the _Cogs_ icon in the popup panel. uBOL is entirely declarative, meaning there is no nee…
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Filter lists for uBlock Origin & uBlock Origin Lite
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Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. T…
I use uBlock Origin to completely block out the news feed and messaging, and it makes my LinkedIn experience orders of magnitude better. When I visit lin…
off uBlock Origin and other extensions in Edge". Neowin. March 11, 2025. Retrieved March 11, 2025. "Microsoft Edge's Privacy Implications with uBlock Origin
uBlock Origin is actively developed and maintained by its creator and lead developer Raymond Hill and the open source community.[1]As of June2026[update]…
The link goes to the normal uBlock Origin landing page, which contains no suggestion that anything has been disabled... It contains, among other things, …
DownloadHelper is the third most popular extension for Firefox (after Adblock Plus and uBlock Origin) and the second most popular Mozilla-recommended extension
Ublock origin is more than an adblocker. You can target entire site elements you don’t like loading. Screw it, delete the entire youtube recommendations s…
code. In July 2018, AdBlock acquired uBlock, a commercial ad-blocker owned by uBlock LLC and based on uBlock Origin. In April 2021, eyeo GmbH (developer
I absolutely agree with that from a technical perspective, but in typical usage, the users won't notice any difference. To be honest, I think uBo almost b…
I’m often amazed at how people I know, full internet “power users”, don’t use it and complain about ads. I have never seen an ad in years, not on YouTube …
I'm really happy that Gorhill has listened to feedback on the branding and explanation of this, and added back in the ability to "opt in" to extended perm…
Yeah, the average user will figure that out. It's still defined as a win for advertisers because not every users will know to do this and also when this …
Brave works great on both desktop and mobile. I have to add an exception to the ad blocker roughly once a month. I guess DNS blocking may be needed if yo…
Now that Edge supports extensions, I can make a Bing2Google extension for Edge, but Microsoft will never accept it. If I make a Bing2Google userscript for…
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