Why does Firefox 4.0.1 access the internet when I open it on an html file on my own computer? What is it doing behind my back ???
If I am not connected to the internet, Firefox 4.0.1 opens the file as expected. But if i am connected, Firefox 4.0.1 not only opens the file, but also generates mysterious internet traffic. What is going on? All plugins are disabled.
Earlier versions of Firefox (before 4) did not generate unexpected internet traffic.
Alla svar (1)
All versions of Firefox by default will try to connect to the internet, for details see https://support.mozilla.com/kb/Firefox+makes+unrequested+connections