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

Whenever I go to webpages there are a few that come up with: "Unable to connect Firefox can't establish a connection to the server.."? What do I do?

  • 1 reply
  • 2 have this problem
  • 12 views
  • Last reply by FredMcD

more options

Whenever I go to some websites there are a few that come up with: "Unable to connect Firefox can't establish a connection to the server.." and the problem occurs with the same websites on other browsers. What might be the problem?

Whenever I go to some websites there are a few that come up with: "Unable to connect Firefox can't establish a connection to the server.." and the problem occurs with the same websites on other browsers. What might be the problem?

All Replies (1)

more options

If you get the same problems with two browsers, the problem is outside of them. Check you computer for blocking programs.


Separate Issue; Your System Details shows;

Installed Plug-ins

Shockwave Flash 15.0 r0 Shockwave Flash 16.0 r0

Having more than one version of a program may cause issues.

Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac Then reinstall the latest version.

Flash Player v16.0.0.257 https://www.adobe.com/products/flashplayer/distribution3.html


http://www.ehow.com/how_11385212_troubleshoot-reset-connection-firefox.html

https://support.mozilla.org/en-US/kb/server-not-found-connection-problem