In Windows, delete the entry in Windows Environment: In Windows Settings, search for environment | Choose "Edit system environment variables" Select "Environment Variables" and under "System Variables," DELETE the environment variable MOZ_NO_REMOTE It doesn't matter whether the variable value is set to 0 or to 1 — the mere presence of the variable appears to cause this problem, including if you try to send an email from Thunderbird from any browser.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to 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. To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/711305/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs