Mozilla Thunderbird is still a fairly popular email client. It would be really handy if there were an add-on to allow it to use Bitwarden instead of its own built-in password manager for storing account credentials.
Thunderbird is XUL-based, like Firefox was before version 57, and unlike with Firefox, there are plans to continue support for XUL-based apps. If there is old code for a pre-57 Firefox add-on, it may not take much to port it to Thunderbird.
This would require supporting URI “protocols” of
imap:// , and possibly
pop:// . Based on the contents of my Thunderbird password manager, URIs of these forms are presented when saving credentials.
I admit that this request is likely to never see the light of day. (Particularly given the answer to the request for a XUL-based version of BitWarden.) But I wanted to get it on record anyway in case I’m not the only one who would love to see Bitwarden supported in Thunderbird.