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 on a video.) Or you can use this to re-enable the control when you want to use it again.
- Click the menu button and select . .
- Scroll down to the Browsing section.
- 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.