Video preview: missing bottom controls on mobile version

[thewh1teagle]

On mobile version of filebrowser when user click video and then preview is showing, I can't see the bottom controls full screen button, back, forward buttons, progress, volume control.

You can see it here:

As you can see in this picture I use it on my mobile device, I clicked the video and the preview opened,
then I tapped once in the middle to "Open the controls", so the pause button showed up but the bottom controls are missing or hiding somewhere.

Update:
It happens in Firefox only

[thewh1teagle]

Solved #2180