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It is possible to write your own extension and still use it in Chrome as long as it's not bundled. It would be a huge pain to get the source for uBlock origin and implement it locally yourself, but it might be worth the pain to block ads.

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The original uBO relies on Manifest V2, the API Chrome no longer supports. It's impossible to run full UBO (not Lite MV3 version) on current versions on Chrome.

>It's impossible to run full UBO (not Lite MV3 version) on current versions on Chrome.

Current version of Chrome seems to be 152.0.7977.39 released August 14, 2026.

August 14, 2026 Chromium 152.0.7977.38 based vivaldis napshot https://vivaldi.com/blog/desktop/address-field-calculator-an... has this in patch notes:

"[Extensions] Re-enable and extend Manifest V2 extension support for the time being (VB-130324)"

Yeah, Vivaldi specifically is keeping MV2 alive for uBO it seems. We'll see how long they can maintain it with their small team.

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