What site is doing this? 99% of the time it is a problem with the headers sent from the web server.

I think " http://engine.webgozar.com/counter/xstat.aspx " stats

http://engine.webgozar.com/counter/xstat.aspx only returns a blank page for me. What happens when you go there?

Firefox downloads xstat.aspx

Can you install https://addons.mozilla.org/en-US/firefox/addon/live-http-headers/ and capture the headers that are sent with the page when you access?

I do not know what the problem is my site that I do not even open the Mozilla extensions I installed when I open Mozilla, this is my website www.zakariakala.ir

@zakaria20

What is the problem with that website?

Reload web page(s) and bypass the cache.

• Press and hold Shift and left-click the Reload button.
• Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
• Press "Cmd + Shift + R" (MAC)

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

• Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"

"Remove Cookies" from sites causing problems:

• Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).

• Don't make any changes on the Safe mode start window.
• https://support.mozilla.org/kb/Safe+Mode

Hi, I solved my issue was with your help I try to do what you said.

What can I do but I made ​​this site with Mozilla problem Vhrvf representation is to please.http://jazeradl.ir/