The Chrome extension uBO Minus uses the same default filter set as uBlock Origin, but in optimized form to take into account the limitations of Manifest V3.Ĭhrome users who rely on content blockers may encounter major issues from January 2023 on. Hill lists cosmetic filtering, scriplet injections, CSP, redirect and removeparam filters specifically. The consequence of this is that certain features are not supported by it. The extension does not require any extra permissions, including the 'read and change all your data on all websites' permission. Hill reveals that uBO Minus uses the declarativeNetRequest API exclusively, which Google introduced in Manifest V3 to replace more powerful APIs of Manifest V3. The minus indicates that it is not as powerful as uBlock Origin. The experimental extension uBOMinus is compatible with Manifest V3. Google, earning most of its revenue from advertising, may benefit from this.

A side-effect, or so it seems, is that privacy and content blocking extensions may run with limited functionality only. Rogue extensions may use the capabilities to spy on users. Google claims that Manifest V3 improves privacy by removing capabilities from extensions.

Ublock origin google chrome install