Update – 25 September 2026
The issue has been reproduced again today.
The Browser Connector was already enabled and connected. No permissions were changed, Opera was not restarted, and no reconnection was performed.
Observed sequence:
list-tabs → success
next browser operation → failed / tab did not become ready
previous reproduction in the same session also returned:
Browser not connected. Make sure to enable "Allow AI connection"...
list-tabs subsequently worked again without any user action
This again indicates an intermittent connector state rather than a permanent disconnection or incorrect setup.
The connection can work, fail on the next operation, and recover without changing settings or reconnecting.
Another user in this thread has independently reported a very similar pattern.
This remains reproducible on Windows 10 with Opera One Stable.