Hello. Yesterday, (9/9/14) I was watching videos on my PC, using FireFox, in the evening I went and had a shower, I got back and without any apparent reason, FireFox stopped producing sound. I installed Chrome after checking all the basics, and Chrome does have sound, I can watch videos on Chrome with sound. I have tried Youtube, MSN, FilmOn, Facebook (Games and Videos), Game sites, SoundCloud, and there is no sound. I opend IE, and tried the same, and got no sound, There is sound on my PC, if I open a MP3 in WMP it Plays, Windows system sounds play, Yahoo sounds play, Skype sounds play, I can hear them loud and clear. TheSims 4 plays sound. I have done the following: Updated Flash, VLC, Java, Shockwaves, QuickTime. Updated FireFox Updated FireFox Pluggins, Followed all steps here: https://support.mozilla.org/en-US/kb/what-to-do-if-firefox-wont-play-any-sounds?redirectlocale=en-US&redirectslug=No+sound+in+Firefox Updated RelTek, Uninstalled FireFox, Swiched Default browser from IE to FireFox and Chrome and back again, I have rebooted my PC 50 times, Deleted Internet cache, cookies, history, etc. I have been to ControlPanel/InternetOptions/Advanced and made sure that "Allow browersers to play sounds" Is checked, I have updated my Graphics Card, and my Sound card. On the Volume Mixer, (FireFox is no muted and its turned up) When I play a video, It remains blank, There is no movment of sound in the Volume Mixer. (Adobe Flash player is not muted either) Im using a Razer Kraken 7.1 HeadSet, I have updated its drivers also. and I cant find an awsner. Im using WINDOWS 8 Nvidia Geforce GTX 650 Intel i7 4th Gen 8GB RAM Please help if you know an awnser!! Thanks Emily