From https://www.linuxquestions.org/questions/slackware-14/thunderbird-91-addons-4175699223/page2.html#post6277399 `export MOZ_REQUIRE_SIGNING=` If signed Thunderbird addons don't even exist, then it seems like a trap to have a configure option - at compile time! - that enforces signatures for Thunderbird addons. That configure option shouldn't exist. Or, if it's hard to get rid of, because it's in mozilla-central, then the Thunderbird build should check and fail configure when it detects that this setting is set.
Bug 1727113 Comment 10 Edit History
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From https://www.linuxquestions.org/questions/slackware-14/thunderbird-91-addons-4175699223/page2.html#post6277399 `export MOZ_REQUIRE_SIGNING=` If signed Thunderbird addons don't even exist, then it seems like a trap to have a configure option - at compile time! - that enforces signatures for Thunderbird addons. That configure option shouldn't exist. Or at least the Thunderbird build should fail configure when it detects that this setting is set.