Ok, the #Thunderbird chat interface for IRC and Matrix seems to have #a11y issues with #NVDA now. Sometimes NVDA completely freezes, especially when the interface is maximised, though not reliably in all channels. I filed a bug, appreciate anyone who can dig into what on earth is going on: bugzilla.mozilla.org/show_bug.…
1972175 - When focusing the chat input in Thunderbird 128.11.1 (for Matrix or IRC), NVDA freezes with watchdog errors until a message is sent.
UNCONFIRMED (nobody) in Chat Core - General. Last updated 2025-06-14.bugzilla.mozilla.org