mozilla can"t open any website
when i started mozilla firefox it can"t open site & it shows given below The connection was reset
The connection to the server was reset while the page was loading.
* The site could be temporarily unavailable or too busy. Try again in a few moments.
* If you are unable to load any pages, check your computer's network connection.
* If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.
but my other browser open every site
3.6.6. window xp