I can confirm the existence of the bug and that applying the linked upstream commit (three lines added to the xdg-email shellscript) fixed the problem for me.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xdg-utils in Ubuntu. https://bugs.launchpad.net/bugs/1996634 Title: xdg-email fails to execute thunderbird.desktop properly Status in xdg-utils package in Ubuntu: Confirmed Bug description: Kubuntu users who use thunderbird as their default mailer will not be able to open mailto: links in html pages. This appears to be a KDE- specific bug from the notes upstream. This issue has been fixed upstream, but the fixes are not yet in: ii xdg-utils 1.1.3-4.1ubuntu3~22.04.1 all desktop integration utilities from freedesktop.org The upstream commit is: https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/187 I verified that the changes in the /usr/bin/xdg-email script listed above address the issue. After applying the code changes, chrome is now able to open mailto links to launch thunderbird. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xdg-utils/+bug/1996634/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
