Hi   Sizzz,  

Would you give this a try:
https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues

Happy112 said

Hi   Sizzz,  
Would you give this a try:
https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues

I tried all of the possible answers on that website and no, none help whatsoever. It's not only Firefox...it's my desktop music and I can't open steam. Mostly everything on Firefox is loading kinda slow sometimes. This is almost broken everything I have on my computer. And I will do anything in order to fix this problem, if it's hard I don't care, if it's easy then good. I just want this problem to be gone and be back to having fun watching online and hearing music into my ears. Thank you though but I need an another possible solution.

I found the solution!

All I did was delete all the files in the temp folder.

Do the window's key + r and put this in it "%temp%"

After that you do ctrl + a (if mac then command + a) and right click and then press delete. Dump them away from the recycle bin and then that's it! I just figured it out after 4 minutes of my last post! :D

You could also uninstall Firefox then restart your computer then Reinstall Firefox and It should start working :)

You are sooo clever   !!!
Well done,   you   !!!
Now,   would you be so kind as to mark   your   last post as   Chosen Solution,   so others will know and might benefit from it   ?
Thank you   !

(I'm impressed   ! )