Sound gone on Mint

[Pouscat]

Hello please forgive my n00biness...
I just got linux mint installed last week and I have not been very experimental yet.
yesterday my sound stopped working on anything running through the browser (firefox) then shortly after I had no sound at all.
I had just installed an update for mint earlier but the loss of sound was not immediate. Tried uninstalling/reinstalling firefox when I noticed no sound on it, but I am not sure if I did it right since it looks so different than the windows install process. I found the mint update packages but didn't immediately notice anything that might be sound (but what do I know)
any ideas?

Mary

[reed9]

Hello, if you could open a terminal and put in the following

wget -O alsa-info.sh http://alsa-project.org/alsa-info.sh && bash ./alsa-info.sh

This should give you a URL to a webpage with lots of useful output.

Post that here and please use code tags.

If you can also give the output of

lspci -vnn

and

head -n 1 /proc/asound/card0/codec*