Available in Firefox 71 for Windows and 72 for MacOS and Linux, the Picture-in-Picture feature allows you to pop videos out of their webpage into a floating, always on top, window so you can watch while continuing to work in other tabs. You can move the Picture-in-Picture window around the screen and resize it to your liking.
šis gan ir labais, īpaši pie mūsdienu platekrāna monitoriem.