Choose the control for the actual page
Mozilla documents an on-video toggle that appears when the pointer hovers over a video. Selecting it opens that video in a floating window. The toggle does not appear while the video is already full screen, so leave full-screen presentation before checking that particular control.
The address-bar button has a different condition. Mozilla introduced it in Firefox 116 for pages with a single video and says it is hidden when a page has multiple videos or none. Record which control is missing rather than describing every route as the same Picture-in-Picture button.
Keep floating windows and source tabs identifiable
For an appropriate page and video, open the floating player using the available documented route. Mozilla describes independent play, pause, mute, skip and full-screen controls and the ability to position and resize several windows.
For a comparison, open one video at a time and note its originating tab before opening another. Confirm which window is sounding and pause anything you are not actively comparing. Two visible windows are not evidence that both are progressing, and two simultaneously sounding programmes make an audio observation difficult to interpret.
Inspect the hover-control setting without assuming one layout
Mozilla’s control-setting article presents interface variants: General, Browsing, Enable picture-in-picture video controls; and a newer Tabs and browsing, Media, Use Picture-in-Picture route. Use the labels actually present in the installed Firefox rather than assuming both locations appear together.
The article describes hiding the hover control and notes that right-clicking the video can still offer a Picture-in-Picture route. Its main guide also warns that websites can override the context menu. A missing hover toggle and a site’s custom right-click menu therefore need separate notes.
Stop at the observed capability
Retain Firefox version, page, number of videos, full-screen state and the launch method used. That gives a reviewer a concrete reproduction path. Do not replace this record with an unsupported promise that every provider, caption format or protected player behaves identically.
No website playback was tested for this guide. It explains Mozilla’s documented controls and conditions, not an automatic-launch guarantee. If the site supplies its own floating mini-player, identify that interface separately from Firefox’s detached window.
Sources and scope
Scope notes distinguish published documentation, supplied information and editorial methods. They do not report a hands-on service test.
- Mozilla: Picture-in-Picture controls — Official body: multiple windows, hover/full-screen boundary, single-video address-bar condition and site context-menu overrides.
- Mozilla: hover-control preferences — Official body presents old/new preference-layout branches and retained right-click access; no automatic-launch claim.
