http://ad.trwv.net/t.pl/96361/417216 How to mute a tab in firefox. If you go to the top of the tab in firefox that is currently 'in focus' or in use, you can click the right mouse button to open the options menu. If you scroll down through the list of options, you will see one that says 'mute tab'. If you click this, it will mute the tab and place a small icon of a speaker with a line through it on the tab. This indicates that the tab is muted and no sound will be heard on that tab.
If you are a user who is used to having many tabs open at once while working, this feature could be extremely useful. For example, if you are a traffic exchange user who uses them to advertise your offers on, you will want to click some of the ads to collect credits. If you have a few tabs doing this all at once the noise can be quite disturbing. Obviously this isn't suitable if you are trying to work on something else at the same time in another tab. Knowing how to mute a tab in firefox will help you keep your sanity in this situation.
How to unmute a tab in firefox? You simply click on the speaker icon with the line through it and you will hear the audio again.
Many people are becoming very accustomed to working more and more on a computer these days. As computers also get much more powerful, we are finding that we can run many tabs simultaneously to allow us to get more done in an efficient manner. It would be fair to say that now, many of us are well used to multi-tasking and as such, knowing how to mute a tab in firefox is importand and very convenient. It is very useful to be able to look through the tabs quickly to see which ones have the speaker icon showing that indicates sound playing and are muted.