debian/changelog

+torbirdy (0.2.6-2) unstable; urgency=high
+
+  * Torbirdy is incompatible with Thunderbird >=68.
+
+ -- Ulrike Uhlig <ulrike@debian.org>  Mon, 25 Nov 2019 09:19:36 +0100
+
 torbirdy (0.2.6-1) unstable; urgency=medium
 
   * New upstream version:

debian/control

@@ -3,7 +3,7 @@ Section: web
 Priority: optional
 Maintainer: Debian Privacy Tools Maintainers <pkg-privacy-maintainers@lists.alioth.debian.org>
 Uploaders: Ulrike Uhlig <ulrike@debian.org>
-Build-Depends: debhelper (>= 9), mozilla-devscripts (>= 0.16~)
+Build-Depends: debhelper (>= 9), mozilla-devscripts (>= 0.47~)
 Standards-Version: 3.9.8
 Homepage: https://trac.torproject.org/projects/tor/wiki/torbirdy
 Vcs-Git: https://salsa.debian.org/pkg-privacy-team/torbirdy.git
@@ -11,7 +11,8 @@ Vcs-Browser: https://salsa.debian.org/pkg-privacy-team/torbirdy
 
 Package: xul-ext-torbirdy
 Architecture: all
-Depends: ${misc:Depends}, ${xpi:Depends}, tor
+Depends: ${misc:Depends}, ${xpi:Depends}, thunderbird (<< 1:68.0), tor
+Breaks: thunderbird (>= 1:68.0)
 Recommends: ${xpi:Recommends}
 Provides: ${xpi:Provides}
 Enhances: ${xpi:Enhances}