The associated support page alludes to concerns about users' privacy and security, but the bigger picture centres on Chrome’s Manifest V3 extension update. The Manifest V3 update is a pretty seismic shift, as it will likely also affect any web browser built using Google's free and open-source Chromium project, such as Microsoft Edge and Opera.

Google Chrome has begun to phase out uBlock Origin. The developer of the free ad blocker, Raymond Hill, recently reposted a screenshot that shows Chrome automatically turning off uBlock Origin because it is “no longer supported.

The browser is doing so as part of Google's plan to phase out older Manifest V2 extensions to bolster Chrome's security. Still, some uBlock Origin users aren't happy about the change.