We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox will not load certain websites (e.g. cnn.com) but other browsers will. What could be wrong?

more options

I recently installed a new version of Kaspersky internet security when I noticed Firefox would not load certain websites. I have done the same on two other computers without the problem occurring. I have turned off the security, but Firefox still will not load. When I use other browsers the same problem does not occur.

I recently installed a new version of Kaspersky internet security when I noticed Firefox would not load certain websites. I have done the same on two other computers without the problem occurring. I have turned off the security, but Firefox still will not load. When I use other browsers the same problem does not occur.

All Replies (1)

more options