Same thing here, I can add that none of this work: - "Send" button - Ctrl+Enter (shortcut for Send) - Ctrl+Shift+Enter (shortcut for Send later)
I started thunderbird from terminal to see if something gets logged to the terminal, but I did not see anything. By the way, I disabled any extension that had anything to do with the Sending or composing functionality. Tried in Gnome, Kde(Plasma), XFCE, same behavior. Downgrading to 1.38.* (via synaptic GUI) worked also for me. -- 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/1604394 Title: send button does not work Status in thunderbird package in Ubuntu: Confirmed Bug description: On 19/7/16 I accept updates for thunderbird 38 to 45.2, using the standard ubuntu update process on 16.04.1 xenial, kernel "4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux" (followed by a lightning extension update). I could not send any email, nor spell check. Nothing happened when I pressed the buttons. So I downgraded to 1.38.6.0+build1-0ubuntu1 (and replaced the lightning extension). All now works again. I had to force and lock this version using synaptic. I don't see how this can be anything to do with my setup, since 38 works OK. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1604394/+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

