Recently I have been having problems when my PC enters sleep mode and the firefox app is open on screen and the site I am looking at is Facebook. The question is who is causing the problem. Until just recently I have never had this problem So is it s facebook, firefox or windows problem. I don't want lots of community suggestions I want this looked into by Mozilla themselves. If anyone nows how to get in touch with mozilla directly please pass this on to them because I can't find a waay of talking to then directly.