Link to issue number:

#14021 (comment)

Summary of the issue:

In the Thunderbird message list on some systems, move by page appears to work, but expansion doesn't.

Description of how this pull request fixes the issue:

Widen scope of try/except to catch this case.

Testing strategy:

Verified no regressions in move by page functionality.

Known issues with pull request:

None known.

Change log entries:

None needed.

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English