- Fix exception handling to catch URLError before generic Exception
- Add WebSocket fallback attempt when HTTP endpoint fails
- Note: WebSocket fallback may not work as Firefox uses different protocol than CDP
- Known issue: HTTP /json/list endpoint closes connection even when DevTools shows connected
- Add get_tabs_via_websocket() to query tabs via WebSocket when HTTP /json/list fails
- Update get_tabs_via_rdp() to try WebSocket fallback
- Update get_tab_html_async() to use WebSocket fallback for getting tab WebSocket URLs
- Known issue: HTTP endpoint may not respond even when DevTools shows connected
- Replace asyncio.get_event_loop() with asyncio.get_running_loop()
- Add better error messages when HTTP endpoint fails
- Show available tab IDs when tab not found
- Handle HTTP endpoint connection failures gracefully
- Document new 'content' command for fetching HTML from tabs
- Add troubleshooting section for HTTP endpoint issues
- Add instructions for running from Nix development shell
- Note requirement for 'nix develop -c $(which fish)'
- Add WebSocket connection functions for Firefox Remote Debugging Protocol
- Implement CDP Runtime.evaluate protocol communication
- Add 'content' command to fetch HTML from tabs via WebSocket
- Add get_tab_html() function to orchestrate HTML retrieval
- Increase connection timeout for RDP requests
