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I cannot connect to any site with Firefox and always get an untitled page saying firefox could not connect to the server. I can connect using internet explorer but not firefox any ideas?

Posted

10 days ago couldn't get on to the internet. Thought this was my serivce provider talktalk and eventually ended up removing all my internet connections and reloading the whole lot with the origional disc only to find I still could not connect. Tried connecting with internet explorer and can access every site. Problem is clearly with Firefox but despite experimenting disabling all and then individual add ons and plug ins can still not get firefox to connect to any site with getting a problem loading page screen and the message "Firefox can't establish a connection to the server at" which is displayed for every web site I have tried.

10 days ago couldn't get on to the internet. Thought this was my serivce provider talktalk and eventually ended up removing all my internet connections and reloading the whole lot with the origional disc only to find I still could not connect. Tried connecting with internet explorer and can access every site. Problem is clearly with Firefox but despite experimenting disabling all and then individual add ons and plug ins can still not get firefox to connect to any site with getting a problem loading page screen and the message "Firefox can't establish a connection to the server at" which is displayed for every web site I have tried.

Chosen solution

In Firefox 3.6.4 and later the default connection settings have been changed to "Use the system proxy settings". See "Firefox connection settings" in Server Not Found - Troubleshoot connection problems

You can find the connection setting here: Tools > Options > Advanced : Network : Connection If you do not need to use a proxy to connect to internet then select No Proxy


Another possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that,. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox. See Server Not Found - Troubleshoot connection problems and Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls

Read this answer in context 8

Additional System Details

This happened

Every time Firefox opened

This started when...

10 days ago

Application

  • User Agent:

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cor-el
  • Top 10 Contributor
  • Moderator
16396 solutions 147934 answers

Chosen Solution

In Firefox 3.6.4 and later the default connection settings have been changed to "Use the system proxy settings". See "Firefox connection settings" in Server Not Found - Troubleshoot connection problems

You can find the connection setting here: Tools > Options > Advanced : Network : Connection If you do not need to use a proxy to connect to internet then select No Proxy


Another possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that,. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox. See Server Not Found - Troubleshoot connection problems and Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls

In Firefox 3.6.4 and later the default connection settings have been changed to "Use the system proxy settings". See "Firefox connection settings" in [[Server not found]] You can find the connection setting here: Tools > Options > Advanced : Network : Connection If you do not need to use a proxy to connect to internet then select No Proxy ---- Another possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that,. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox. See [[Server not found]] and [[Firewalls]] and http://kb.mozillazine.org/Firewalls

Question owner

It was the firewall that did it. Couldn't findany evidence of it preventing or having any rules for access to mozilla but restored the default settings and I am back on.

Thanks

It was the firewall that did it. Couldn't findany evidence of it preventing or having any rules for access to mozilla but restored the default settings and I am back on. Thanks
CAGlen 0 solutions 1 answers

I have the same problem. Neither of these solutions worked for me. I've also tried uninstalling and reinstalling. Firefox works fine from my laptop connected to the same wireless network.

I have the same problem. Neither of these solutions worked for me. I've also tried uninstalling and reinstalling. Firefox works fine from my laptop connected to the same wireless network.
Jtresco 0 solutions 1 answers

We havr the same problem. Two other laptops in the house connectt with firefox just fine. "unable to connect" is the message. Windows Vista not sure which version, but we did reinstall firefox and it still doesn't connect

We havr the same problem. Two other laptops in the house connectt with firefox just fine. "unable to connect" is the message. Windows Vista not sure which version, but we did reinstall firefox and it still doesn't connect
impath 0 solutions 1 answers

We have register new website of Weebly. http://www.lovemoneyclub.net Now I can not open completely .Every time it wii show as this pop-up by say

Oops! Weebly encountered an error. Please try your last request again. Kindly reply asap.

We have register new website of Weebly. http://www.lovemoneyclub.net Now I can not open completely .Every time it wii show as this pop-up by say Oops! Weebly encountered an error. Please try your last request again. Kindly reply asap.
Shawn
  • Moderator
42 solutions 549 answers

Hi there impath,

Instead of asking your question on this thread, please start a new thread so we can help you better.

Thank you!

Hi there impath, Instead of asking your question on this thread, please start [https://support.mozilla.com/en-US/questions/new a new thread] so we can help you better. Thank you!

Modified by Shawn

cor-el
  • Top 10 Contributor
  • Moderator
16396 solutions 147934 answers
  • "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
  • "Remove the Cookies" from sites that cause problems: Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

* "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now" * "Remove the Cookies" from sites that cause problems: Tools > Options > Privacy > Cookies: "Show Cookies" Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes). * Don't make any changes on the Safe mode start window. See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
icam108 0 solutions 1 answers

I'm still having trouble with this after trying the suggestions above...please help! I love my firefox.

I'm still having trouble with this after trying the suggestions above...please help! I love my firefox.
the-edmeister
  • Top 10 Contributor
  • Moderator
5271 solutions 39036 answers

icam108,

Please start your own thread and explain your problem completely, instead of posting in a thread that is marked Solved.
Click here - Ask a new question - to start a new thread.

icam108, Please start your own thread and explain your problem completely, instead of posting in a thread that is marked '''Solved'''.<br /> Click here - [https://support.mozilla.com/en-US/questions/new Ask a new question] - to start a new thread.
cor-el
  • Top 10 Contributor
  • Moderator
16396 solutions 147934 answers

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.
See Server Not Found - Troubleshoot connection problems and Configure firewalls so that Firefox can access the Internet and http://kb.mozillazine.org/Firewalls

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, possibly after detecting changes (update) to the Firefox program.<br /> Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox.<br /> See [[Server not found]] and [[Firewalls]] and http://kb.mozillazine.org/Firewalls