We’ve just released a new Thunderbird Conversations (previously know as Gmail Conversation View) with full support for Thunderbird 52. We’re sorry for the delay, but the good news is it should now work fine.
I’d like to thank Jonathan for letting me help out with the release process, and for all those who contributed to release or filed issues.
If you find an issue, please submit it at our support site.
The add-on should work with the current Thunderbird Beta versions (56), but won’t currently work in Daily (57) due to some compatibility issues. We’re hoping to get those resolved in the next week or so.
If you want to help out with future releases, then find the source code here and come and help us with supporting users or fixing issues.