From Fedora Project Wiki
Identifying your problem area
Disable all Thunderbird extension you have installed.
Start Thunderbird, then go to Tools, from there select Add-ons.
Disable all extensions listed there.
Information to include in your report
All bug reports
Sample entry
In all cases, the following should be mentioned and attached to your bug report:
- The exact command-line used.
- A copy of the components log file
/path/to/<components_log_file>
Sample entry
As well as the information from the 'All bug reports' section, include the following information:
Debugging <component>
As root install <components> debug package.
# debuginfo-install <component>
How to GDB component
Sample Note
Sample Tip
Sample Warning