Just in case: https://blog.mozilla.org/addons/2024/03/13/manifest-v3-manifest-v2-march-2024-update/ https://blog.mozilla.org/addons/2024/03/13/manifest-v3-manif

Just in case: https://blog.mozilla.org/addons/2024/03/13/manifest-v3-manifest-v2-march-2024-update/ https://blog.mozilla.org/addons/2024/03/13/manifest-v3-manif... > Support for Event pages, along with support for blocking webRequest, is a divergence from Chrome that enables use cases that are not covered by Chrome’s MV3 implementation. > Firefox, however, has no plans to deprecate MV2 and will continue to support MV2 extensions for the foreseeable future.