What version of ubuntu are you using and what version of thunderbird are you using?
Can you try to disable all extenstions and themes and than see if you can crash it. If so can you please try with a new profile by following instructions at https://wiki.ubuntu.com/MozillaTeam/Bugs
What version of ubuntu are you using and what version of thunderbird are you using? /wiki.ubuntu. com/MozillaTeam /Bugs
Can you try to disable all extenstions and themes and than see if you can crash it. If so can you please try with a new profile by following instructions at https:/