Embedded audio on certain sites like Tumblr and Wikipedia doesn't work.

Question

I can play video with sound on sites like YouTube and embedded audio clips work on some sites, but recently, I cannot hear embedded sound files on video and audio clips on sites like Tumblr and Wikipedia. How do I fix this?

Answer 1

Is it just those sites? Any other problems?
Many site issues can be caused by corrupt cookies or cache.
* Clear the Cache
Press the '''<Alt>''' or '''<F10>''' key to bring up the tool bar.
Followed by;
Windows; '''Tools > Options'''
Linux; '''Edit > Preferences'''
Mac; ''application name'' '''> Preferences'''
Then '''Advanced > Network > Cached Web Content: Clear Now'''
and
* Remove Cookies
Press the '''<Alt>''' or '''<F10>''' key to bring up the tool bar.
Followed by;
Windows; '''Tools > Options'''
Linux; '''Edit > Preferences'''
Mac; ''application name'' '''> Preferences'''
Then '''Privacy.'''
Under '''History''', select Firefox will '''Use Custom Settings'''.
There is a button on the right side called '''Show Cookies'''.
If there is still a problem,
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''''' {web link}
While you are in safe mode;
Press the '''<Alt>''' or '''<F10>''' key to bring up the tool bar.
Followed by;
Windows; '''Tools > Options'''
Linux; '''Edit > Preferences'''
Mac; ''application name'' '''> Preferences'''
Then '''Advanced > General.'''
Look for and turn off '''Use Hardware Acceleration'''.
Poke around safe web sites and see if there is still a problem. Then restart.