When I open Safari and after going through3 or 4 websites my sound is muted and I cannot un mute? All the sites work fine except I have no sound. The only way to get the sound back is to re boot the Mac and of course it starts all over?? Anyone have any ideas? I am still using 10.6.8 because our friends from Quicken still cannot figure out how to build a product for the MAC!
When something unexpected or unexplained happens on a Mac, malware is the last possibility you should consider, not the first.
Macs are not immune to malware, but no true viruses exist in the wild that can run on Mac OS X, and there never have been any since it was released over 12 years ago. The only malware in the wild that can affect Mac OS X is a handful of trojans, which can be easily avoided by practicing safe computing (see below). 3rd party antivirus apps are not necessary to keep a Mac malware-free, as long as a user practices safe computing, as described in the following link.
Read the What security steps should I take?
section of the Mac Virus/Malware FAQ
for tips on practicing safe computing.
No, a website cannot change your audio settings on your Mac. First verify that other apps still produce sound by playing a music file or use any other app that makes sound. Once you have verified that audio is working on your Mac, you can focus on Safari.
You may have a Safari plugin or extension that is misbehaving or an adblocker or script blocker that is causing the problem. Try disabling all extensions and blockers and reset Safari to see if the problem still exists. Then re-enable them one by one until you find the culprit.