Package: xul-ext-torbirdy Version: 0.2.6-1 Severity: important Thunderbird is removing support for XUL extensions from version 68. While there might be a possibility to convert Torbirdy to what Thunderbird now calls MailExtensions and run the code of the extension as legacy code, this would only have an effect within a limited timeframe: Thunderbird will entirely remove support for legacy extensions in version 72 or 78 (planned for summer 2020).
According to research of segfault from Tails, it seems impossible to even set the preferences that Torbirdy set via this new MailExtension format. Some more detailed explanations can be found here: https://redmine.tails.boum.org/code/issues/17149#note-6 Upstream bug: https://trac.torproject.org/projects/tor/ticket/31341