According to Manifest V2 support timeline, the extension will stop working in January 2023 unless it is converted to Manifest V3.
The guide Migrating to Manifest V3 gives information on what needs to be done to convert the extension to Manifest V3. The most intrusive is probably converting the background page to instead use Service workers.
According to Manifest V2 support timeline, the extension will stop working in January 2023 unless it is converted to Manifest V3.
The guide Migrating to Manifest V3 gives information on what needs to be done to convert the extension to Manifest V3. The most intrusive is probably converting the background page to instead use Service workers.