Firefox when it has finished downloading a file automatically it will scan it using a basic in-built engine. This is very slow and usually redundant as most people have a real time antivirus solution. This guide shows you how to disable it.
Firefox
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Since Firefox version 2 a feature called the session restore function has been implemented. This feature saves the tabs you have open every 10 seconds. This can cause flash video such as youtube to jump and stutter. ...
If you type about:config into Firefox you will open the configuration screen. This can be used to change many settings that affect the inner workings of Firefox. If you have customised this then it would be a good idea to backup t...