Hi Parisa, Sorry to hear you’re having trouble with Mozilla not opening any sites and getting a “connection failed” message.

A few things you could try:

Check your internet connection to make sure it’s working properly.

Clear your browser cache and cookies.

Try disabling any VPN or proxy settings if you have them enabled.

Restart your computer and router.

Make sure Mozilla Firefox is updated to the latest version.

If none of these help, please share more details like your operating system and any error codes you see. We’ll try to help you get it fixed!

Hope this helps!

Hi Parisa,

Sorry to hear you're having trouble with Mozilla. A few quick things to try:

Check your internet connection to make sure it's working.

Clear your browser cache and cookies.

Disable any VPN or proxy settings.

Restart your computer and router.

Make sure Firefox is updated to the latest version.

If these don't work, let me know your operating system and any specific error codes. Hope this helps you get it sorted! For a fun way to make quick decisions, try our head and tail tool.