Update AMO Version
Currently the version on addons.mozilla.org is 1.1.5 while the latest version at https://www.dnssec-validator.cz/ is 2.1.1. It would be nice to upload the latest version to AMO so that users using the AMO version get automatically updated.
Yes, the new version 2.1.2 has been uploaded to AMO last week and waits on the preliminarily reviewed by Mozilla now. The our web page will be updated as soon as add-on will be accepted on AMO.