Google Chrome is now encouraging uBlock Origin users who have updated to the latest version to switch to other ad blockers before Manifest v2 extensions are disabled.

As uBlock Origin lead developer and maintainer Raymond Hill explained on Friday, this is the result of Google deprecating support for the Manifest v2 (MV2) extensions platform in favor of Manifest v3 (MV3).

“uBO is a Manifest v2 extension, hence the warning in your Google Chrome browser. There is no Manifest v3 version of uBO, hence the browser will suggest alternative extensions as a replacement for uBO,” Hill explained.

“uBO Lite (uBOL) is a pared-down version of uBO with a best effort at converting filter lists used by uBO into a Manifest v3-compliant approach, with a focus on reliability and efficiency as has been the case with uBO since first published in June 2014.”

Google Chrome users are also warned to remove or replace the uBlock Origin ad blocker with similar extensions.

A “Find alternative” link also sends them to this Chrome Web Store page, which advises them to switch to uBO Lite, Adblock Plus, Stands AdBlocker, or Ghostery.