After experiencing updates to the Nightly, Dev, and Beta channels, Mozilla confirmed today that the “Picture in Picture” video feature will be available to all users with the official Firefox 71. Compared to Chrome and other Chromium-based browsers that implement Web APIs, Mozilla believes they don’t need APIs to enable the PiP UI in Firefox, allowing users to pop-up videos and watch them in a single window.
To use the PiP feature in an unstable version, try the following steps
1. Visit YouTube,
2. Play any video
3. Right-click twice on the video and select “Picture-in-Picture “option or click on the blue rectangle that appears when you hover over (which Mozilla calls as “Picture in Picture Toggle”).
We'd like to ship the Picture in Picture feature soon on Windows. Our dev team wrote an article about it in July and would appreciate any additional feedback and bug reports (via the form in the article, Twitter, Bugzilla…). Help us ship it in 71! 😀https://t.co/H36Q3BSx7z
— Firefox Nightly 🔥 (@FirefoxNightly) September 16, 2019
Mozilla said it will be open to Linux and Mac platforms after meeting their high standards.
How to enable Picture in Picture on Firefox:
1. Visit about:config
2. Search for “Picture” and change the following prefs value to “true”