Synchronously play your videos in two browsers.

What is Coplay?
Coplay is a Firefox add-on that allows users to play web videos in sync on two browsers. With WebRTC and PeerJS, connect and control video players simultaneously on popular platforms like Youku, YouTube, and more.
By: Justineo
Users: 61 ▲ 6
Rating: 3.67 (3)
Version: 0.6.0 (Last updated: 2020-02-10)
Creation date: 2016-07-11
Weekly download count: NaN
Firefox on Android: Yes
Risk impact: Very high risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
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Size: 58.77K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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When two browsers are playing the same web video, Coplay can connect them with WebRTC (using PeerJS) and enable users to control two video players synchronously.

Coplay now works on Youku, Sohu TV, Tencent Video, Tudou, iQiyi, YouTube bilibili, LETV and Vimeo.

Buttons on control bar stands for "connect"/"disconnect", "play", "pause", "sync" and "restart".

User reviews
by puppy, 2021-11-27

by kyle, 2020-01-23

Не работает на Android.
by shurygin2013, 2018-12-03
View all user reviews
Risk impact

Coplay is very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.

Risk likelihood

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

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