@kevinrns Among other things, I'm a Web developer. In addition to Firefox, I have Chromium from the woolyss page installed (portable sync version with auto-updates). I use Chromium as my main browser. I have version 127.0.6533.120 installed at present and uBlock Origin is running fine. Unsure if the Manifest V2 deprecation is Chrome only, or if the Chromium builders are keeping it active, but it works.

https://chromium.woolyss.com

P.S. - I've been using these Chromium builds successfully for years.