Template:enablep2p

If you don’t want to see the controls while hovering, you can hide that option in Firefox. (Note: You can still turn on picture-in-picture view by right-clicking a video.) Or you can use this to re-enable the control when you want to use it again.

1. In the Menu bar at the top of the screen, click Firefox and then select Preferences or Settings, depending on your macOS version.Click the menu button and select Settings.
2. In the General panel, scroll down to the Browsing section.
3. Clear the check mark for Enable picture-in-picture video controls.

   

If you later want to re-enable the controls, simply add back the check mark.