can't connect to server at mozilla

Hi,

When opening Firefox, I receive the message " Firefox can't establish a connection

with the server at mozilla.

I have uninstalled and reinstalled it three times and I get the same message.

My OS is Windows 7 Home premium and my device is a Toshiba laptop.

I am able to open Firefox on my notebook, OS Windows 8.1

My laptop has been checked out by my local tech, and he can't solve this either.

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References support.mozilla.org/en-US/questions/1123545

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