Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Force clear DNS?

  • 2 பதிலளிப்புகள்
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 9 views
  • Last reply by greatzhwt

xelas
xelas
more options

FF 74.0 on Windows 10. I visited a local university (Pepperdine U) 2 weeks ago and accidentally hit their WiFi sign-on page: https://logon.pepperdine.edu/cas/login?TARGET=https%3a%2f%2fsso.pepperdine.edu%2fcloudapps%2flogin.aspx

I never signed into their network, the computer is NOT Pepperdine's, has never been touched by their IT staff, and has nothing to do with them. Ever since my visit, any attempt to sign into a Google account via Firefox (and ONLY via Firefox) always takes my to that WiFI login page. I've tried going to "https://accounts.google.com", clicking the "Sign-in" button on the main Google search page, or navigating to "gmail.com". Everything works perfectly fine on any other browser (Chrome, Edge), and I can get to gmail if I open it in a Private Window in Firefox. I've tried:

1) setting network.dnsCacheExpiration to "0", 2) I've rebooted the PC and restarted Firebox many times (and I was in Pepperdine over 2 weeks ago). 3) I've nuked all cookies for both Pepperdine and Google. 4) nslookup indicates that the correct IP is returned form the expected DNS server if i do a lookup manually. 5) There is nothing interesting in the hosts file in Windows.

What do I need to clear out to stop this annoying issue?

FF 74.0 on Windows 10. I visited a local university (Pepperdine U) 2 weeks ago and accidentally hit their WiFi sign-on page: https://logon.pepperdine.edu/cas/login?TARGET=https%3a%2f%2fsso.pepperdine.edu%2fcloudapps%2flogin.aspx I never signed into their network, the computer is NOT Pepperdine's, has never been touched by their IT staff, and has nothing to do with them. Ever since my visit, any attempt to sign into a Google account via Firefox (and ONLY via Firefox) always takes my to that WiFI login page. I've tried going to "https://accounts.google.com", clicking the "Sign-in" button on the main Google search page, or navigating to "gmail.com". Everything works perfectly fine on any other browser (Chrome, Edge), and I can get to gmail if I open it in a Private Window in Firefox. I've tried: 1) setting network.dnsCacheExpiration to "0", 2) I've rebooted the PC and restarted Firebox many times (and I was in Pepperdine over 2 weeks ago). 3) I've nuked all cookies for both Pepperdine and Google. 4) nslookup indicates that the correct IP is returned form the expected DNS server if i do a lookup manually. 5) There is nothing interesting in the hosts file in Windows. What do I need to clear out to stop this annoying issue?

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can check the connection settings.

  • Options/Preferences -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet then try to select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

greatzhwt
greatzhwt
more options

Same problem here, tried to visit google.com while my laptop's WiFi off this morning, and I got a "cannot find website servers" error.

Now I cannot access google.com completely. Moreover, while I'm using Stack Overflow, I need to complete a CAPTCHA due to "failed to load some scripts" I guess, but the CAPTCHA didn't show up because it uses a google.com domain.

Since this isn't the first time this problem occurs and I really don't want to restart Firefox, I tried to clear DNS cache. Apart from what the OP did, I also tried to set:

  • network.dnsCacheEntries set to 0 and 1
  • network.dnsCacheExpiration set to 0 and 1
  • network.dnsCacheExpirationGracePeriod set to 0 and 1
  • network.dns.forceResolve set to true, false, 0, 1, 2

All of them doesn't work. network.dns.forceResolve set to integer will result in a "connection failed" error, set to true or false only makes it looks like its resolving that domain in 3 or 2 seconds, but doesn't help. Besides, Chrome on my computer can access google.com without any problem.