Firefox will not connect to the Internet anymore. What do I do?

''duplicate - locking - https://support.mozilla.com/en-US/questions/894256''
I was prompted to update FF. Afterwards, it wouldn't connect to the Internet. Windows Explorer still does though. I did System Restore, Uninstalled and Reinstalled FF without avail. The problem still persists! I hate Explorer and want my FF back ASAP. H E L P Pls.

Try the following solutions and whichever setting works, keep it Permanent:
1) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option1 -> Click OK -> OK
2) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option2 -> Click OK -> OK
3) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option3 -> Click OK -> OK
Check which solution works.

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After downloading the Firefox 3.6.15 update, my problems began. Firefox would not connect to the Internet. When I rebooted my PC, Firefox said that it couldn't access any Web sites. I uninstalled Firefox, then downloaded and installed Firefox 3.6.15. I still have the same problem: Firefox will not connect to the Internet. I am running Windows XP, service pack 3. I never had problems with Firefox until I installed version 3.6.15.

I have XP Pro. I tried installing 3.6.15 and could not open it. I did a system restore and 3.6.14 would no longer open. I tried again installing 3.6.15 and got a message that the previous version had not uninstalled properly. Tried uninstalling.
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I then clicked Start, My Computer, drive C, Program Files and deleted the Firefox folder.
I installed 3.6.15 and it is now working fine with all my bookmarks and addons loaded automatically.

My laptop compaq presario will not connect to the Internet anymore after buying airport extreme. Why? It detects the network, accepts my password, but will not connect to Internet.

My laptop compaq presario will not connect to the Internet anymore after buying airport extreme. Why? It detects the network, accepts my password, but will not connect to Internet. I tried to repair connection, tried to reboot modem several times, I even updated my computer. Nothing. All it says is that it does not detect modem. Why?

Welcome to the support community group.
First, are you sure that your AirPort Extreme has been configured correctly and is properly connected to your modem?
Begin by telling us how you have things connected and if the Airport Extreme is replacing a previously owned router or is this an entirely new installation?
First be sure that your modem is working and properly connects you to the internet using an ethernet cable directly connected to your laptop. Once you're sure that's working, reset the AirPort to factory defaults by disconnecting it from power and pressing and holding in the small reset button on the back for 15 - 20 seconds while you reconnect it to power. Then turn everything off for 5 minutes. Connect the Airport to your modem with and ethernet cable to the Airport WAN port on the back (check the user guide to make sure you connect the cable to the correct port) then connect a second ethernet cable between the laptop and one of the LAN ports on the AirPort Extreme.
Then power up the modem first, wait 5 minutes and then power up the Airport, wait 5 minutes and finally power up your laptop.
Then run the airport configuration utility from your laptop. Since you're not using an Apple computer, be sure that all of your firewall, and virus blocking and checking software is disabled before you run the airport configuration utility. Once you run the utility, it should detect your AirPort and allow you to use the configuration wizard to set things up.
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Beginning last week, Firefox will not connect to the internet.

Firefox will not access the internet at all. This began suddenly and not immediately following a change in Firefox or my computer.

Maybe you have a malware infection.
See:
*[[/forums/contributors/707453]]
Do a malware check with some malware scanning programs. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan. 
 
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also:
* "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Firefox performed an automatic update on my machine and now my firefox will not connect to the internet

today firefox performed an unexpected update and now it doesn't work (connect to the internet)

See --> [https://support.mozilla.com/en-US/kb/Cannot%20connect%20after%20upgrading%20Firefox Cannot connect after upgrading Firefox]
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''

Firefox will not connect to the internet.

When I try to connect with firefox it gives me the message that firefox was unable to connect to the server that I was attemting to connect to, and then it asks me if I would like to try agian. I still have internet explorer on my computer and it connects just fine. I need to have firefox working, or I will have to go with google chrome or something different, as internet explorer is not recomended to use on most online college applications and it is finals week.

Windows 7 has a firewall which controls access to the internet on a program by program basis. It is possible that Firefox is not in the firewall's list of a approved programs.
Go to the Help feature and search on Firewall and read the information on how to allow a program internet access.
I don't use the Windows 7 firewall, I use ZoneAlarm's firewall. When I installed ZoneAlarm, I disabled the Windows 7 firewall and have never used. Thus, I can't give you detailed directions as to what you might need to do to allow Firefox to use the internet.
NOW - are you able to get to the internet with Internet Explorer, just as a test?
If not, then the problem may be elsewhere, such as your internet connection - dialup, DSL, Cable, etc.
Stan

Firefox will not connect to the internet, but I can still load Internet Explorer and use it to browse.

I alredy tried a deinstall and reinstall
Attempted to configure internet settings, not sure if I did it right.

Try the following solutions and whichever setting works, keep it Permanent:
1) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option1 -> Click OK -> OK
2) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option2 -> Click OK -> OK
3) go to Tools Menu -> Options -> Advanced -> Network -> click '''Settings...''' button infront of Connection -> select option3 -> Click OK -> OK
Check which solution works.

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IP is right
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Hi Duncan
MacFixit recently posted a report for subscribers testing 3rd party routers for Mac compatibility. 3 Routers did not do very well in the test:
From their report:
Routers:
MacSense [Fair]
Expressed support for Macs
Somewhat confusing process for installing firmware updates under Mac OS X
Manuals still show only Mac OS 9 screenshots/instruction
D-Link [Fair]
Mac-specific section on Web site with ostensibly compatible routers
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Firmware updates appear to apply specifically to Windows-related issues
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Linksys [Poor]
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Thought this info might be useful as you look into your router situation.
iMac G5 Rev C 20" 2.5gb RAM 250 gb HD/iBook G4 1.33 ghz 1.5gb RAM 40 gb HD Mac OS X (10.4.8) LaCie 160gb d2 HD Canon i960 printer, Airport Express (2 units)

Firefox dose not connect to the internet

After I installed the firefox 4.0 I can not connect to the internet anymore but I could connect through the explorer from the same cumputer, Itryed eferyyhing wireless or cable.

Windows 7 has a firewall which controls access to the internet on a program by program basis. It is possible that Firefox is not in the firewall's list of a approved programs.
Go to the Help feature and search on Firewall and read the information on how to allow a program internet access.
I don't use the Windows 7 firewall, I use ZoneAlarm's firewall. When I installed ZoneAlarm, I disabled the Windows 7 firewall and have never used. Thus, I can't give you detailed directions as to what you might need to do to allow Firefox to use the internet.
NOW - are you able to get to the internet with Internet Explorer, just as a test?
If not, then the problem may be elsewhere, such as your internet connection - dialup, DSL, Cable, etc.
Stan

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Try resetting your network settings.
Settings>Genenal>Reset>Reset Network Settings.

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Remember networks this computer has joined
is checked.
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Symptom: After restarting or waking from sleep, my computer might not connect to the Internet
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7. Repair permissions on the startup volume.
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- Peter

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Firefox will not connect to the Internet anymore. What do I do?

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