I have this problem in Ubuntu 22.04.1 LTS with Thunderbird 91.11.0 and am shocked to see that this bug has persisted for 12 years.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/711305 Title: Thunderbird is already running, but is not responding. To open a new window, you must first close the existing Thunderbird process, or restart your system. Error received when clicking a mailto link in firefox. Status in Mozilla Thunderbird: Confirmed Status in thunderbird package in Ubuntu: Triaged Bug description: Binary package hint: thunderbird This thunderbird error is given when clicking a mailto link. Instead of using the thunderbird that's already open it tries to open a new instance. Preferred Applications has Thunderbird select, but I have also tried Custom command "thunderbird %s". This has been tested on 10.04 and 10.10. Both result in this error if thunderbird is already running. Thunderbird is already running, but is not responding. To open a new window, you must first close the existing Thunderbird process, or restart your system. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: thunderbird 3.1.7+build3+nobinonly-0ubuntu0.10.10.1 ProcVersionSignature: Ubuntu 2.6.35-25.44-generic 2.6.35.10 Uname: Linux 2.6.35-25-generic i686 Architecture: i386 Date: Tue Feb 1 10:19:09 2011 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) ProcEnviron: LANG=en_CA.utf8 SHELL=/bin/bash SourcePackage: thunderbird To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/711305/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
