Compatability issue with MinVid from Firefox

[Virility]

Hi, so Min Vid is an experiment by Mozilla (https://testpilot.firefox.com/experiments/min-vid/) to allow mini video windows on certain sites. Using this in parallel to Min Vid causes the video speed controller to disappear once the Min Vid controller is in focus. Hoping this gives some insight: https://i.imgur.com/vpYklac.gifv