Connected, but the video tab does nothing?
Your browser may be withholding KoalaSync’s access to that website. The room connection can still look healthy while KoalaSync cannot read or control the player.
Use the built-in one-click fix
- Open the video website and then open the KoalaSync popup.
- Select the video tab. If access is blocked, KoalaSync shows an access notice instead of silently pretending the tab is connected.
- Select Allow access and approve the browser prompt. KoalaSync retries the tab automatically.
- If the prompt does not appear, use the manual browser steps below and reload the video page once.
Modern browsers let users, profiles, and administrators withhold extension access per website. Chrome’s newer extension menu makes that existing control much more visible. KoalaSync now detects the blocked state and asks for access only after you select a video tab.
Allow KoalaSync on the current site
- Keep the affected video tab open.
- Open the browser’s extensions menu near the address bar.
- Under Access requested, select KoalaSync and allow access.
- If needed, open KoalaSync’s extension details and change site access to On this site or On all sites.
- Reload the video tab and select it again in KoalaSync.
Check extension permissions
- Open Add-ons and themes, then select Extensions.
- Open KoalaSync and select Permissions or Permissions and data.
- Allow the requested website access.
- Return to the video site, reload it, and select the tab again.
KoalaSync must reach the player you selected
KoalaSync injects a local content script into the selected tab so it can find the HTML5 player, read its playback position, and apply play, pause, and seek actions. The video and audio stream never leave your browser. Only synchronization state is sent through the relay.
Access is requested for the website origin shown in the popup. Browser-internal pages such as chrome://, edge://, and about: cannot be controlled. Local files may also require the separate Allow access to file URLs switch in the extension details.
Run these checks in order
- Update KoalaSync in both browsers. Friends using different releases should update before testing again.
- Reload the video page after granting access. An already-open page may still have the old blocked state.
- Open KoalaSync and reselect the exact tab containing the player.
- Confirm the debug report says Video Found. A page without a standard player may need site-specific support.
- Temporarily test without another extension that also modifies the player.
- If it still fails, collect a debug report from each participant before leaving the room.