Ok, so im pretty new to Ubuntu, and i have to say its awesome. However, my Logitech C500 webcam doesnt work on Firefox nor Epiphany. I cant take a picture on facebook with the webcam nor chatroulette. I have "Cheese" and the web cam works great. Skype, works fine. But firefox....nothing. I looked up this model web cam and yes it is compatible with Linux.

Can anyone help me? All help is appreciated