This is actually a very critical concern, compared to other programs in general. Thunderbird must have changed the WebExtensions APIs after v68 (based on what

This is actually a very critical concern, compared to other programs in general. Thunderbird must have changed the WebExtensions APIs after v68 (based on what I see in the addons compatibility). Several extensions in the top list by users, are not compatible with v78¹. Thunderbird snap users are literally going to wake up one day, and find that [some of] their extensions are not working anymore. ¹=https://addons.thunderbird.net/en-US/thunderbird/extensions/?sort=users https://addons.thunderbird.net/en-US/thunderbird/extensions/... edit: Removed Lightning reference, as it's not 100% clear if it will be bundled with TB.