(This is my first post here, I hope my post is ok)After sleep mode (close / open laptop screen), if I try to play a video on youtube the video doesn't play and I have this message : If playback doesn't begin shortly, try restarting your device.But if I open youtube with Chromium and play any video : it plays in Chromium and it even unlocks the video in Firefox! (the Firefox video starts playing at the moment I press play on the Chromium video, strange no?)It is not a big problem but I would like to fix it and I don't understand how and why sleep mode could locks videos in Firefox and playing a video in Chromium unlocks Firefox videos.Do you have any ideas ?Thank you.Thinkpad X220Debian 8.7
Youtube videos after sleep mode
debian;video;firefox;browser