firefox-esr crash after suspend

[cgz]

hi there
minimal gui install.
firefox-esr crashes when run it, apparently after returning from suspend (not every time).
ExceptionHandler::GenerateDump cloned child 9750
ExceptionHandler::SendContinueSignalToChild sent continue signal to child
ExceptionHandler::WaitForContinueSignal waiting for continue signal...

hope to get tips on strace or gdb to help info to fellow maintainer.