Comment 73 for bug 1895643

Thanks for seeing this through, but let me raise some important points.

Why is Thunderbird not covered by the same update policy as Firefox? Sure it's not a web browser, but it's one of the most important and widely used GUI email clients. Also, it is a close cousin of Firefox.

These updates took way too long to come out for LTS releases, and they are/were already obsolete once they did roll out. For example, the 78.9.x and 78.10.x releases are more than a month old at this point, and both contain fixes for "high" severity vulnerabilities:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-12/
https://www.mozilla.org/en-US/security/advisories/mfsa2021-14/

I think Ubuntu should make a greater effort to keep up with Thunderbird upstream.