Popup windows auto-relocate to tabs — when a connected page opens a popup via window.open or target="_blank", the extension moves it into the source window as a regular tab and auto-attaches it. Agents no longer need the cmd+click workaround for OAuth flows.

New page warning replaces unreachable popup warning — the executor now emits [WARNING] New page opened from current page (index N, initial url: ...) pointing agents at the new tab. The old Popup window detected ... cannot be controlled by playwriter warning is gone.

Minimum extension version enforcement — if the installed extension is older than 0.0.80, the CLI and MCP warn the user to update via chrome://extensions. The warning is also surfaced in the MCP agent's warning stream.

Fix multi-browser relay collisions — Chromium-based browsers that don't have a signed-in Google account (Chromium, Vivaldi, Helium, Dia, etc.) previously all shared the same browser:Chromium relay key, causing them to replace each other's WebSocket connection. The extension now persists a per-install ID in chrome.storage.local and uses it as a stable fallback key.

Fix extension takeover loop — after being replaced by another instance, the extension's reconnect loop now waits until the replacement is fully gone before reclaiming the relay slot. Previously it checked activeTargets === 0, which is briefly true right after a fresh replacement connects, causing the old worker to steal the slot back and drop the active Playwright tab.