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

Error message - Unable to find proxy server - how can I solve this problem

  • 4 replies
  • 16 have this problem
  • 1 view
  • Last reply by FredMcD

more options

When I try to enter some sites I get the error message: Unable to find the proxy server, Firefox is configured to use a proxy server that can't be found. This happened suddenly and I'm not sure why or how I can fix it, it doesn't help that most help site are blocked. Im using a Mac 10.5.8 and Firefox 15.

When I try to enter some sites I get the error message: Unable to find the proxy server, Firefox is configured to use a proxy server that can't be found. This happened suddenly and I'm not sure why or how I can fix it, it doesn't help that most help site are blocked. Im using a Mac 10.5.8 and Firefox 15.

Chosen solution

Set to use no proxy.

Firefox> Preferences > Advanced > Network > Setting > mark No proxy

Read this answer in context 👍 20

All Replies (4)

more options

Chosen Solution

Set to use no proxy.

Firefox> Preferences > Advanced > Network > Setting > mark No proxy

more options

You can check the 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":

more options

Thank you very much to the both of you - problem solved! Yey thanks!!!

more options

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.