Claude in Chrome extension not connecting from Cowork session (worked ~1 week ago)

Claude in Chrome is no longer connecting to my browser from a Cowork chat session. It was working as recently as about a week ago.

What I've already tried:

Removed and reinstalled the extension
Fully restarted my computer
Confirmed I'm logged into the same account in both Chrome and the Claude desktop app

What happens: Claude repeatedly reports "Browser extension is not connected" with no further detail, even immediately after reinstalling and restarting.

Environment:

OS: Windows
Context: Claude desktop app, Cowork mode (cloud session), not the Claude Code CLI

Would appreciate any insight into whether Cowork cloud sessions have a different connection path for this extension than local Claude Code sessions, since that's the main thing that changed on my end that I can think of.