Subject: Thunderbird will not start

From: Kristopher John Gamrat <[email-masked]>
Date: Tue, 22 May 2018 12:29:49 -0400

Package: thunderbird
Version: 1:52.6.0-1~deb9u1

Thunderbird does not start when clicked on in the applications menu. When run 
in a terminal window, the error message pasted below is produced. This may be 
related to a bug report recently filed against the firefox-esr package.

(thunderbird:6940): Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x 
and GTK+ 3 in the same process is not supported
ExceptionHandler::GenerateDump cloned child 6955
ExceptionHandler::SendContinueSignalToChild sent continue signal to child
ExceptionHandler::WaitForContinueSignal waiting for continue signal...
Trace/breakpoint trap