Migrating to manifest v3
This post is not a migration guide. Google has published one here . The goal is to raise awareness among extension owners. The idea is to understand the impacts and the efforts required. Are you concerned ? Well, as of Jan 2022, you can't post a manifest v2 based extension on the Chrome Web Store (CWS) and by end of 2022, all extensions should have been migrated. Official Google timeline is here . So the question is more about the severity of changes you need to bring in and when you need to start the efforts. This depends on: - the complexity of your addon, its architecture and the balance of responsibilities between content and background scripts - the amount of chrome APIs deprecated in V3 - the usage of chrome APIs that are not available or not ready yet in V3. - the usage of DOM based APIs Note: you can still distribute V2 extensions till June 2023 if you don't host your extension on CWS and force deployment thru Google Enterprise policy. Service workers Architecture is