YTSync Firefox

YTSync

Watch videos directly on YouTube with your friends. Using this plugin you can watch videos directly on YouTube with your friends and don't need to visit an extra site like sync-video or watch2gether to synchronise the videos.

Features & Capabilities

Using this plugin you can watch videos directly on YouTube with your friends and don't need to visit an extra site. You also have the advantage that you can synchronise livestreams and videos which have been blocked for embedded play. You also can use the features YouTube has to offer e.g. liking the current video, storing the current video in your private playlist and many more.

Features

  • Synchronising Videos and livestreams directly on YouTube
  • Basic permission system
  • Queue functionality
  • Autoplay functionality
  • Reactions
  • Dark and light mode (depending on your YouTube setting)
If you think there is anything missing then just create a feature request.

What changes after installation? After you installed the plugin you will see a few more buttons on YouTube when you watch a video. These buttons can be found directly next to the like/dislike buttons below a video. With these buttons you can create a sync room, leave a sync room, or add a video to the queue.

Usage Simply create a sync room directly on YouTube, copy the url and give it to your friends. Now you can watch the videos together.

For a detailed summary on how to use this plugin please visit the Github Repository.

FAQ Q: Why is the video not playing for me when I am in a sync room? A: Please allow autoplay of videos for youtube.com. (https://support.mozilla.org/en-US/kb/block-autoplay)

User Growth & Download Statistics

Manifest V2 Add-on
By:
Tandashi
Daily users:
4 1
Rating:
5.00
(1)
Version:
2.0.1 Last updated: 2022-01-15
Version code:
5350188
Creation date:
2020-05-08
Risk:
Moderate risk impact Low risk likelihood
Content scripts matches:
  • www.youtube.com
Size:
88.99KB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-16
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Tandashi
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/ytsync/
Website:
https://github.com/Tandashi/YTSync-Plugin

Is YTSync Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

YTSync requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

YTSync has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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