Video Sync

Helps you synchronize two videos in different tabs.

This extension helps users maintain synchronization between a reaction video and the media being watched. After manually aligning the two videos once, the extension saves the synchronization offset so they stay perfectly in sync — even after pausing, seeking, or changing playback time. You can play or pause both videos simultaneously with a single click, and your sessions are automatically saved so you can easily restore them later. Supports all videos and streaming services.