Package: thunderbird Version: 1:78.6.0-1~deb10u1 Severity: important Dear Maintainer, the thunderbird wrapper [1] shipped in this package make use of the following environment variables to make sure the application knows where it was executed from:
* MOZ_APP_NAME * MOZ_APP_LAUNCHER * MOZ_LIBDIR The use of MOZ_APP_LAUNCHER is the source of some problems when Thunderbird and Firefox are both used on the same system. Firefox checks the variable value in nsGNOMEShellService::GetAppPathFromLauncher and uses that to check if it's set as the default browser in nsGNOMEShellService ::IsDefaultBrowser. If Thunderbird is open and the user clicks on a link, the Firefox subprocess inherits all the environment variables, including MOZ_APP_LAUNCHER. Doing so causes Firefox to think its name is Thunderbird (...) and prompt the user to make it the default browser, wreaking havoc in the process. It's unclear whose bug is this, Firefox upstream [2] stated this problem should probably be solved on the Thunderbird side. On the Debian side I don't really know what could be a good solution. If the use of the `MOZ_*` variables is strictly needed then I guess it's up to the firefox (and firefox-esr) packages to add a small wrapper script that overwrites the MOZ_APP_LAUNCHER upon launch. Cheers, AC [1] https://salsa.debian.org/mozilla-team/thunderbird/-/blob/debian/sid/debian/thunderbird-wrapper.sh [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1494436 -- System Information: Debian Release: 10.7 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-6-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages thunderbird depends on: ii debianutils 4.8.6.1 ii fontconfig 2.13.1-2 ii libatk1.0-0 2.36.0-2~bpo10+1 ii libbotan-2-9 2.9.0-2 ii libbz2-1.0 1.0.6-9.2~deb10u1 ii libc6 2.28-10 ii libcairo-gobject2 1.16.0-4 ii libcairo2 1.16.0-4 ii libdbus-1-3 1.12.20-0+deb10u1 ii libdbus-glib-1-2 0.110-4 ii libevent-2.1-6 2.1.8-stable-4 ii libffi6 3.2.1-9 ii libfontconfig1 2.13.1-2 ii libfreetype6 2.9.1-3+deb10u2 ii libgcc1 1:8.3.0-6 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libglib2.0-0 2.58.3-2+deb10u2 ii libgtk-3-0 3.24.5-1 ii libjson-c3 0.12.1+ds-2+deb10u1 ii libpango-1.0-0 1.42.4-8~deb10u1 ii libstdc++6 8.3.0-6 ii libx11-6 2:1.6.7-1+deb10u1 ii libx11-xcb1 2:1.6.7-1+deb10u1 ii libxcb-shm0 1.13.1-2 ii libxcb1 1.13.1-2 ii libxext6 2:1.3.3-1+b2 ii libxrender1 1:0.9.10-1 ii psmisc 23.2-1 ii x11-utils 7.7+4 ii zlib1g 1:1.2.11.dfsg-1 Versions of packages thunderbird recommends: ii hunspell-en-us [hunspell-dictionary] 1:2018.04.16-1 Versions of packages thunderbird suggests: ii apparmor 2.13.2-10 ii fonts-lyx 2.3.2-1 ii libgssapi-krb5-2 1.17-3+deb10u1 ii libgtk2.0-0 2.24.32-3 -- no debconf information
