Despite the headline, this is being done by Thunderbird, not Mozilla
Thunderbird is completely independent of the Mozilla Corporation, the makers of Firefox. But the Mozilla Coperation[sic] supports Thunderbird by hosting many of the Thunderbird infrastructure and resources.
Despite the headline, this is being done by Thunderbird, not Mozilla
https://support.mozilla.org/en-US/kb/thunderbird-faq#w_who-makes-thunderbird
Yea sounds like too closely related imo. Probably best to keep away.