Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Upon opening MFF 3.6.3 I am asked to authenicate a username and password to get on to "fasTun". I believe this is a virus, which I am unable to find, or eradicate. This co-incided with my computer located in Canberra, Australia, thinking my ISP is in Fran

  • 1 பதிலளி
  • 20 இந்த பிரச்னைகள் உள்ளது
  • 1 view
  • Last reply by rjohnson19

See detail in original question. Here is the text from the dialog box which comes up, with fields for Username and Password: "The proxy fastun.com:7000 is requesting a user name and password. The site says: "fasTun"." This means I'm unable to use MFF. I've uninstalled MFF and re-installed MFF and the same occurs. The problem arose after I'd been surfing the Net and got to a German site. From that point onwards my internet became very slow. When I ran "speedtest.net" my computer was going thruugh Frankfurt, Germany, instead of Canberra, Australia! Can you please help?

This happened

Every time Firefox opened

Following my doing a System Restore to a point prior to the computer slowing down. From that point on I've been unable to use MFF to connect to any websites. The problem does not appear using Windows Internet Explorer 8, nor is there an issue with speed of downloads.

User Agent

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

See detail in original question. Here is the text from the dialog box which comes up, with fields for Username and Password: "The proxy fastun.com:7000 is requesting a user name and password. The site says: "fasTun"." This means I'm unable to use MFF. I've uninstalled MFF and re-installed MFF and the same occurs. The problem arose after I'd been surfing the Net and got to a German site. From that point onwards my internet became very slow. When I ran "speedtest.net" my computer was going thruugh Frankfurt, Germany, instead of Canberra, Australia! Can you please help? == This happened == Every time Firefox opened == Following my doing a System Restore to a point prior to the computer slowing down. From that point on I've been unable to use MFF to connect to any websites. The problem does not appear using Windows Internet Explorer 8, nor is there an issue with speed of downloads. == == User Agent == Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Check the proxy settings under Tools -> Options -> Advanced - Network tab, Settings button.

You probably want No Proxy, if it is set to anything else.

See https://support.mozilla.com/en-US/kb/Options+window+-+Advanced+panel#Connection_Settings_Dialog

http://fastun.com (a registration required web accelerator / anonymizer) indicates it has some sort of Firefox add-on. Do you see a relevant one in Tools -> Add-ons -> Extensions? Try disabling it.

If you are not sure which one it is, try Diagnose Firefox issues using Troubleshoot Mode to disable all of them.

Read this answer in context 👍 2

All Replies (1)

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Check the proxy settings under Tools -> Options -> Advanced - Network tab, Settings button.

You probably want No Proxy, if it is set to anything else.

See https://support.mozilla.com/en-US/kb/Options+window+-+Advanced+panel#Connection_Settings_Dialog

http://fastun.com (a registration required web accelerator / anonymizer) indicates it has some sort of Firefox add-on. Do you see a relevant one in Tools -> Add-ons -> Extensions? Try disabling it.

If you are not sure which one it is, try Diagnose Firefox issues using Troubleshoot Mode to disable all of them.