Firefox will not connect to Tumblr, Facebook, and Google sites.

I had an issue where my computer completely froze up and I had to force restart. When I logged back on, Firefox no longer trusted Google or Facebook. Youtube seems ok, it's just sites with "google.com" in the URL... and Facebook.
Here's the error message I am getting:
This Connection is Untrusted
You have asked Firefox to connect
securely to maps.google.com, but we can't confirm that your connection is secure.
Normally, when you try to connect securely,
sites will present trusted identification to prove that you are
going to the right place. However, this site's identity can't be verified.
What Should I Do?
If you usually connect to
this site without problems, this error could mean that someone is
trying to impersonate the site, and you shouldn't continue.
maps.google.com uses an invalid security certificate.
The certificate is not trusted because no issuer chain was provided.
(Error code: sec_error_unknown_issuer)
I accepted that I would take the risks, but these sites won't load images. What good is Facebook without faces? Any ideas?
(A user on another site suggested uninstalling Firefox, cleaning the registry, and then re-installing. Doing this made Tumblr stop working)

*deep breath* Ok. All is well. Thank you all for your help. I wouldn't have realised what the issue was otherwise. I'm good now

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Firefox will not connect to internet after upgrade. The window pops up but shows "connecting " in tab. And then it sit there. Close it down and then try to reopen it and get message " Firefox already running, Exit program or shut down computer" ???

Firefox will not connect to internet after upgrade. The window pops up but shows "connecting " in tab. And then it sit there. Close it down and then try to reopen it and get message " Firefox already running, Exit program or shut down computer" ?????????????????

1st problem see http://kb.mozillazine.org/Firewalls
2nd problem, to close Firefox properly use File > Exit
:not with the [x] in upper right corner which close window
:see http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit
:if restarting use "Restartless Restart" extension as mentioned there.
 Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it.

Firefox will not connect to certain major `websites" Why? I can go to Google and access

In the last 4 days Firefox will not connect/find certain major websites. Basically says that server not found.
What's the deal here? I use windows 7 and have the most current
firefox update.

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, 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 and the plugin-container process and the updater process.
See:
*https://support.mozilla.com/kb/Server+not+found
*https://support.mozilla.com/kb/Firewalls
*http://kb.mozillazine.org/Error_loading_websites
*https://support.mozilla.com/kb/Error+loading+web+sites

After updating to Firefox 3.6.15, Firefox will not connect to the Internet, even after uninstalling and re-installing Firefox in my Windows XP environment.

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.
As a precaution I used MozBackup to save my bookmarks etc. and also saved a system restore point.
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.

Firefox will not connect to any website following upgrade. Anti-malware is not blocking AFAIK

Firefox will not connect to any website *at all* since upgrading to latest version. No mention of Firefox anywhere in firewall- and anti-malware-related services (Intego VirusBarrier X6 V10.6.13).
*** System Info Follows ***
Hardware Overview:
Model Name: Mac mini
Model Identifier: Macmini1,1
Processor Name: Intel Core Duo
Processor Speed: 1.83 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 2 MB
Memory: 1 GB
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SMC Version (system): 1.3f4
Serial Number (system): ***
Hardware UUID: ***
System Software Overview:
System Version: Mac OS X 10.6.8 (10K549)
Kernel Version: Darwin 10.8.0
Boot Volume: Macintosh HD
Boot Mode: Normal
Computer Name: ***
User Name: ***
Secure Virtual Memory: Enabled
64-bit Kernel and Extensions: No

Check your firewall settings. It could be blocking the new version.
* http://kb.mozillazine.org/Firewalls

Firefox will not connect to serever.

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Which security software (firewall, anti-virus) do you have?
A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, 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 and the plugin-container process and the updater process.
See:
* https://support.mozilla.com/kb/Server+not+found
* https://support.mozilla.com/kb/Firewalls

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So you also rebooted your router correct? Does the iPod still connect okay to other networks?
B-rock

Firefox will not connect to any site since downloading new upgrade.

Firefox will not connect to any websites since installing the latest upgrade. Google Chrome and Internet do work.

Some problems occurs when your Internet security program was set to trust the
previous version of Firefox, but no longer recognizes your updated version as
trusted. Now how to fix the problem: To allow Firefox to connect to the Internet
again;
* Make sure your Internet security software is up-to-date (i.e. you are running the latest version)
* Remove Firefox from your program's list of trusted or recognized programs, then add it back. For detailed instructions, see
'''[https://support.mozilla.org/en-US/kb/configure-firewalls-so-firefox-can-access-internet?esab=a&s=Configure+firewalls+&r=0&as=s Configure firewalls so that Firefox can access the Internet.]''' {web link}

My ipod touch has a usb cable picture with an arrow pointingto the itunes logo. the ipod will not connect to a computer and is unable to be turned off as there is no red power slider when the powerbutton is pressed. what can i do to fix this?

my ipod touch has a usb cable picture with an arrow pointing to the itunes logo. the ipod will not connect to a computer and is unable to be turned off as there is no red power slider when the power button is pressed. what can i do to fix this?

Try:
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How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
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Apple Retail Store - Genius Bar

HT1695 my ipad will not connect to the internet and it has been but now it won't do it at all

my ipad will not connect to the internet and is has been before now

iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting
http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet
http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
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How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
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iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
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Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
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~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Firefox will not update. Have uninstalled and re-downloaded. However firefox appears to not be able to connect for updats.

Firefox works well, except will not connect for updates

If there are problems with updating or with the permissions then best is to download the full version and trash the currently installed version to do a clean install of the new version.
Download a new copy of the Firefox application and save the disk image file to the desktop
*Firefox 30.0: http://www.mozilla.org/en-US/firefox/all.html
*Trash the current Firefox application (open the Applications folder in the Finder and drag the Firefox application to the Trash) to do a clean (re)install
*Install the new version that you have downloaded
*https://support.mozilla.org/kb/Installing+Firefox+on+Mac
Your personal data is stored elsewhere in the Firefox profile folder, so you won't lose your bookmarks and other personal data when you uninstall and (re)install Firefox.
*http://kb.mozillazine.org/Profile_folder_-_Firefox

Firefox will not connect to another web site and it will not reopen after I close it.

I have removed Firefox and reinstalled it. I have tried to disable addons but it still will not open unless I reboot my computer. If this problem cannot be fixed easly, I will have to remove Firefox for good. When it is open, it will not connect to any URL I enter. When I close it it will not reopen and I get a message that says I have to restart Windows. This bug needs to be fixed. It worked one day and the next day it would not work.

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, 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 and the plugin-container process and the updater process.
See:
* https://support.mozilla.com/kb/Server+not+found
* https://support.mozilla.com/kb/Firewalls
See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
*https://support.mozilla.com/kb/Firefox+hangs

Just downloaded new update 7/.1 and now firefox will not connect

Just downloaded the latest update 7.0.1. Restarted computer now firefox will not cponnect. IE will Thinderbird will. Turned off firewall and tried no luck so not firewall blocking it

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, 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 and the plugin-container process and the updater process.
See:
*https://support.mozilla.com/kb/Server+not+found
*https://support.mozilla.com/kb/Firewalls

After installation of 8.0.1 Firefox will not connect through Zone Alarm Firewall

After updating Firefox from 8.0.0 to 8.0.1, Firefox would no longer connect to either my LAN or the internet. Internet Explorer, Outlook and Ping work fine, the latest version of Chrome also will not connect. If I turn off the Zone Alarm Free firewall, everything connects again.

Your firewall is not recognizing the new version; it is just doing its job.
#Exit Firefox (''Firefox button'' > Exit or ''File > Exit'')
#Remove references to firefox and plugincontainer from your firewall list of allowed programs
#Start Firefox, let your firewall detect the new version and give permissions to allow Firefox access to the internet
'''NOTE:'''
*In ZoneAlarm 10.1.056.000, the ZA toolbar only works with Firefox 7.
*In ZoneAlarm 10.1.065.000, the ZA toolbar only works with Firefox 8.
See --> [https://support.mozilla.com/en-US/kb/Cannot%20connect%20after%20upgrading%20Firefox Cannot connect after upgrading Firefox]
Visit the ZoneAlarm forum: http://forums.zonelabs.com/index.php
'''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 any website but other browsers can

I installed firefox on my new advent laptop running windows 7 but it will not connect to any websites. I can connect using chrome or ie no problem but i always preferred firefox as a browser, i have tried changing settings and turning off my firewall but still having no luck

Okay, here is my answer to this problem. At least it fixed my problem and firefox now works fine.
Prior to this problem I was running zonealarm (free firewall) everything worked fine until I removed zonealarm free and installed Comodo free firewall. That is when the trouble started. firefox failed and IE kept working. I tried everything posted here nothing worked for me.
I resorted to "REGEDIT" and removed everything in my registry that regedit would allow that had the name of "zonealarm" on it. Didn't even have to reboot my system, firefox worked first thing. Everything else is fine also.
[note: this is not a slam against Lavasoft's ZoneAlarm firewall. It is just that UNINSTALL programs do not always do a thorough job of removing parts of programs in your systems and registry cleaner programs do not pick them up either.]
USE CARE, "REGEDIT" IS A POWERFUL AND DANGEROUS TOOL TO USE ESPECIALLY IF YOU ARE NOT A SOMEWHAT ADVANCED USER. USE CARE WITH "REGEDIT!"
Good luck.
Lane

Firefox will not connect to Tumblr, Facebook, and Google sites.

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