Hello there We have read the messsge We try to help For example, an add-on can cause a crash and an update can also cause one. see if you can boot into the so-called trouble shoot mode option. If you can boot up normally and it doesn't cause a crash then it could be a bad add-on that is the problem, track it down and remove it from your list of add-ons. Also, this same problem can be caused in the same way with any piece of software on your PC that urgently needs to be removed from your PC machine. This may also be a bug. This can be reported if you want? please report it to us. https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird https://www.thunderbird.net/en-US/thunderbird/115.5.1/releasenotes/ https://support.mozilla.org/en-US/kb/thunderbird-add-ons-frequently-asked-questions Greetings Firefox volunteer

Please post your crash ID(s). https://support.mozilla.org/kb/mozilla-crash-reporter-tb#w_viewing-crash-reports