2025-09 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5065426) (26100.6584)
2025-09 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5065426) (26100.6584)
Since the Windows 11 Pro update (above) on September 9, I have been unable to compose a new email with Thunderbird. When "New Message" is selected, the new message window opens and is expected. The problem is that the new message window is non-responsive to any keys on the keyboard. The only way to close the window is to "ALT CTL DLT" to close that task. Any help provided will be appreciated.
All Replies (4)
I have Thunderbird 140.3.0esr on Windows 11 24H2 pro with KB5065426 installed and I don't have this issue.
Thank you. Thunderbird has been a solid performer on this configuration for a long time, with NO major issues.
Try this:
- go to TB menu > Settings > General
- scroll all the way down and click the 'Config editor' button on the right
- click 'Accept the risk and continue' if that appears
- search for accessibility.force_disabled > change the value to 1 > click the check mark
- restart TB
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