The backstory here is that Thunderbird devs would like to be faster but have a hard time working against the Gecko changes that breaks their build.
Sure Thunderbird kind-of works, as in it's "done", but people find Security bugs in the Firefox base and it's not sure how they apply to Thunderbird to Thunderbird has to take the update and then they have to deal with the breakage and the incompatibility. You can't just stop and be on Firefox 45 forever. That's just asking for trouble.
Sure Thunderbird kind-of works, as in it's "done", but people find Security bugs in the Firefox base and it's not sure how they apply to Thunderbird to Thunderbird has to take the update and then they have to deal with the breakage and the incompatibility. You can't just stop and be on Firefox 45 forever. That's just asking for trouble.