When using Firefox in Windows 10 to play back video from SnapStream, users may experience part of the screen or browser window flashing white. This is most common in full-screen mode, but may also happen in windowed mode.
This appears to be a problem with Firefox's handling of fullscreen video. SnapStream has implemented a workaround for the issue in a recent software update. Please visit supportsnapstream.youcanbook.me to schedule an update for your system.