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Firefox says "proxy server is refusing connections" after Mozilla update


On 1 July Mozilla generated an automatic update. Immediately after, I received the message"proxy server is refusing connections." I am unable to get online on my computer. How can this problem be solved?

This happened

Every time Firefox opened

== 1 July 2010 after a Mozilla update

Dettagli aggiuntivi sul sistema

Plugin installati

  • -Heppkat Communicator
  • Default Plug-in
  • Shockwave Flash 10.0 r22
  • Adobe Acrobat Plug-In Version 5.00 for Netscape
  • DRM Netscape Network Object
  • Npdsplay dll
  • DRM Store Netscape Plugin


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/2009060215 Firefox/3.0.11

Ulteriori informazioni


Chris Ilias
  • Moderator
115 soluzioni 1064 risposte

Risposta utile

Have you read https://support.mozilla.com/en-US/kb/Error+loading+web+sites#Proxy_errors

Utente che ha posto la domanda

Since I can't access the net, I can't use the TOOLS etc. path to correct the problem. Can you give me some more help or advice?

Chris Ilias
  • Moderator
115 soluzioni 1064 risposte

As long as you can open Firefox, you should be able to access the Tools menu. Can you not open Firefox at all?

Utente che ha posto la domanda

I have the similar problem except I can get into tools , options etc But when I tick "no proxy and ok " it just reverts back to use proxy

  • Top 10 Contributor
  • Moderator
10749 soluzioni 96724 risposte

See http://kb.mozillazine.org/Preferences_not_saved and How to fix preferences that won't save

KevinTheGreat 0 soluzioni 1 risposte

Risposta utile

This is a sign of MALEWARE. Go into safemode with networking. Then TOOLS, then Network, then Proxy Setting and choose to turn them off. I just did this for a cleint and then ran MALWAREBYTES.


jheffaishadhez 0 soluzioni 1 risposte

'the mozilla firefox in my computer can't access evrytime i open the firefox always proxy server refusing connection post in my computer and it does'ntwork......how i solved this problem?help me i dont know wat to do....

Modificato da jheffaishadhez il

4rapiddev 0 soluzioni 2 risposte

I had the same issue with both Firefox and IE. There is a tuturial tell that I have to adjust my proxy settings to solve the issue.

FOXMcCLAUD 0 soluzioni 1 risposte

I had the same problem, I confirmed it was solve by moddinbg the rules on local firewall. I gave all-permit to firefox application

Ron_H 0 soluzioni 1 risposte

I found the problem, on my computer at least. Look for a prefs.js file in: C:\Documents and Settings\owner.Desktop\Application Data\Mozilla\Firefox\Profiles\xxxxxx.default\extensions\optimizegoogle@optimizegoogle.com\defaults\preferences. This prefs.js file had all the proxy settings I didn't want, i.e., I deleted the file. Firefox boots up fine now with no need to change the proxy settings under "options" each time. I've spent hours chasing this down. Hope it's helpful to others.

johnboy1053 0 soluzioni 1 risposte

I downloaded foxy proxy and now am able to connect without manually changing my proxy settings every time i open Firefox. It,s the only thing I could find that would work.

blazer3512 0 soluzioni 1 risposte

I keep getting "the proxy server is refusing connections". When I changed the network setting to "no proxy", I then get the error "Server not found". Any other suggestions?

nonsense66 0 soluzioni 1 risposte

NEVER FireFox. I loved version 3.6. But now I hate all the latest versions with it's problems, issues, bugs etc. I will use chrome! It is the best browser currently!

kenny2o11 0 soluzioni 1 risposte

Thank you so much this link is very helpful