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BrowserOS ships with built-in ad blocking that works immediately—no extensions required.

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How It Works

BrowserOS comes pre-installed with uBlock Origin, the most effective open-source ad blocker available. Chrome has been phasing out support for Manifest V2 extensions, which uBlock Origin relies on for its full blocking capabilities. We re-enabled Manifest V2 support in BrowserOS to keep uBlock Origin running at full power. You get the same uBlock Origin from the Chrome Web Store—we just make sure it actually works.

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BrowserOS vs Chrome

We ran both browsers through adblock.turtlecute.org, a test that measures how effectively a browser blocks ads and tracking scripts.

BrowserOS — 68%

BrowserOS blocking 68% of ads

Chrome — 7%

Chrome blocking only 7% of ads
Out of 133 ad-related requests:
  • BrowserOS blocked 91 (68%)
  • Chrome blocked 9 (7%)
That’s roughly 10x more protection with zero configuration.

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What This Means

Fewer ads means faster page loads, less bandwidth usage, and significantly reduced tracking. BrowserOS handles this natively so you can focus on browsing.