Removed working Firefox 7, Installed Firefox 10.0, Firefox will not load. When I click on icon, firefox.exe process shows briefly in task manager, then goes away....no errors, nothing

Removed working Firefox 7, Installed Firefox 10.0, Firefox will not load. When I click on icon, firefox.exe process shows briefly in task manager, then goes away....no errors, nothing. Never see browser panel at all. Also tried to install Firefox 9.0, but the same result was observed.

Rather difficult to say what the problem may be at present but for general info please have a look at
* [[safe mode]]
*[[firefox will not start]]
*[[firefox hangs]]
Note sometimes you may have to wait a while for firefox to shutdown completly, and if it has hung then as explained in the above articles you may need to kill any firefox.exe process that is still running (and maybe plugincontainer.exe)
Try starting firefox in [[safe mode]] e.g. by holding down shift key
* do not make any changes in the first window, just click on continue ? Do you get as far as seeing the options window for safe mode ?
If firefox is crashing see [[firefox crashes]], this is easier to work through if you can get firefox to start without crashing on startup. Currently some firefox users are finding Firefox 10 crashes on startup, and a new version Firefox 10.0.1 is being released very soon to deal with this and another cause of hangs.
Not saying any of this applies to your case but recent issues include
* ask tool bar causing hangs if video is used none English versions [/forums/contributors/708073]
* possibly some crashes do not start the crash reporter and other issues [/forums/contributors/708122?page=2#post-45059]
* some general info about current crashes [/questions/917748#answer-308124]

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Firefox 6 will not load when I click the icon. I have tried to uninstall it, both through the control panel and geong straight to help.exe. In both cases nothing happens. How do I uninstall this program?

Firefox 6 will not load when I click the icon. I have tried to uninstall it, both through the control panel and going straight to help.exe. In both cases nothing happens. How do I uninstall this program?

Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the 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]]
* [[Troubleshooting plugins]]
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
* Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
* Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

Since upgrading to Firefox 27.0 some webpages will not load when I click on them. It gives me a message saying that Firefox can't find the server.

Since upgrading to Firefox 27.0 some webpages will not load when I click on them. It gives me a message saying that Firefox can't find the server. I have to click the link several time before it will load and sometimes when they do load it does not show the page right. It is like the HTML is messed up or something. I have tried everything I can think of. I started in safe mode, still did it., I removed add-ons, still did it., I reset Firefox and still did it., I completely uninstalled Firefox and re-installed Firefox and it still does it. I have tried Malware Bytes Anti-Malware scans and Avast boot-time scans and found no malware or viruses. I have found that those websites open the first time with no problems on my IE9 and they used to do so in Firefox 26.0. I'm at my wit's end. The website links are in my bookmarks and are used all the time so they are trusted and my avast is set to allow them. They range from news websites to gun websites and everything I have read says that Mozilla does not filter those unless something has changed recently.

Try this as a first step; 
Clear the Cache '''''Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"''''' 
and 
Remove Cookies '''''Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"''''' 
If there is still a problem,
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
While you are in safe mode;
'''''Firefox Options > Advanced > General'''''. Look for and turn off '''Use Hardware Acceleration'''.

Firefox will not launch when I click the icon, it worked okay previously

A week ago firefox began taking a long time to launch sometimes requireing reclicking the icon.
Now it will not launch at all.
I get no error messages, nothing happens when I click the icon.
HELP

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.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
See also:
*http://kb.mozillazine.org/Browser_will_not_start_up

Firefox will not open when I click the icon and windows task manger indicates firefox is running.

I can't open firefox. I click the icon, my cursor shows Firefox is loading, then nothing happens, the screen remains the same.

Hi Iekard.
Press CTRL+SHIFT+ESC to see if the firefox.exe process is running. If it is, terminate it and try to run Firefox again.
If that doesn't help, try running Firefox in safe mode. If it works like that, maybe it'll work again in normal mode.

When I click "share" icon for Facebook, ensuing popup windw unstable. pops up then gone, cyclically,won't stop until I close originating tab/website. can't post FB unless use Safari. Mac OS 10.6.8. Tried to post pic wouldn't work

When I click "share" icon for Facebook, ensuing popup windw unstable. pops up then gone, cyclically,won't stop until I close originating tab/website.pop up blocker off & in safe mode. can't post FB unless use Safari. Mac OS 10.6.8. Tried to post pic wouldn't work

O.k. Thanks for the clarification. I poked around in my TimeCapsule router's settings (TimeCapsule is an Apple Airport Extreme router with attached hard drive for wireless backup/storage). Unfortunately, it doesn't look like I can disable multicasting with the TimeCapsule. I can change the multicasting 'rate'. Settings are Low, Medium, High. It's currently set to Low.
I did a few web searches, and found an Apple.com article: <http://support.apple.com/kb/HT3789?viewlocale=en_US> which explained how to disable Bonjour Service Advertisements. I believe this is the same thing as 'Multicasting'. The process is a modification of "/System/Library/LaunchDaemons/com.apple.mDNSResponder.plist", and a restart of the Mac is required afterwards.
I'm a bit concerned that disabling multicasting will interfere with my AppleTVs and iTunes music sharing, but I may try it next time I'm up for a computer workout. This task will require editing of system preference files, could require multiple restarts, might interfere with my AppleTVs, could interfere with my iTunes file sharing, doesn't have a documented relationship to my problem.
This is way to difficult for something that should just work. Did you say you had read something about a relationship between this bonjour multicasting and smb connectivity? If it was online could you post the link?
I'm currently able to connect to the drive using NFS, but I have to manually configure that connection each time I reboot (can't get the 'Disk Utility' configured to do it automatically). While it's working with NFS, it's not my preferred connect method (for various reasons).

Firefox will not open when I click on it. It won't even let me open the profile manager. Uninstalling it and re-installing it does nothing. And it is driving me insane. I need firefox.

It will not open. No matter what I do.

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

Firefox will suddenly not open when I click the icon, even though I have used Firefox on this computer for several months with no issues.

I have always used Firefox with no problems but suddenly the window will not even open when I click the Firefox icon. No error windows appear either.

Hi pkuhne-
I am not sure why your Firefox stopped working all of a sudden. I would recommend uninstalling and then re-installing Firefox.
1) Get new download: http://www.mozilla.org/en-US/firefox/new/
2) Uninstall your current Firefox version.
3) Do not remove personal data when you uninstall the current version.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
4) It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
Hope that helps

Firefox will not load when the icon is clicked

I have been running Firefox for a few months now on my Windows 7 64-bit Laptop, however recently when I clicked the firefox icon the firefox window does not appear, I have attempted restarting my computer, allowing firefox on my firewall, running firefox with admin permissions, reinstalling firefox, but none of these methods seem to work. I haven't recently installed any add-ons or updated my firefox. Any solutions?

Did you remove the Firefox program folder before reinstalling Firefox?
Do a clean reinstall and delete the Firefox program folder (C:\Program Files\Mozilla Firefox\) before reinstalling a fresh copy of Firefox.
*http://kb.mozillazine.org/Installation_directory
Download a fresh Firefox copy and save the file to the desktop.
*Firefox 15.0.x: http://www.mozilla.org/en-US/firefox/all.html
Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.
*Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
*It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
*http://kb.mozillazine.org/Uninstalling_Firefox
Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.
If you keep having problems then also create a new profile.
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Profile_backup
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Firefox will not open when I click on the icon (OS X).

Firefox worked perfectly until I installed the most recent update. After I installed the update Firefox refused to open. When I click on the icon it begins to open but I never see the window and it closes within 3 seconds and I never even get an error message. Help!!!
== Operating system ==
OS X

Also having the same problem.
I have tried the following with no luck.
*Uninstalling and deleting profile + profile.ini then reinstalling
*deleting the .parentlock file
*deleting and reinstalling version 3.6.8.dmg
*Checked the activity monitor that the application isn't listed as running
*Downloaded addtrap and uninstalled again
all with no luck.
Try some of these first as they might fix your problem but not mine! ;)
If anyone knows of something I may be missing I would appreciate any help.
Thanks

I has to have my harddrive wiped and I reinstalled Mozilla Firefox but now it will not start when I click on it on the desk top?

I have used Mozilla Firefox on my lap top before and it worked well. However, since I had to have my harddrive wiped, I had to reinstall Firefox and now everytime I click on the icon to start it, my computer bluescreens! I do not know what to do?

Did you reinstall from backups, or www.Mozilla.org?

Firefox will not open when i click icon

can not open firefox
== i try to click firefox icon ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)

Hopefully this support article is what you need:
https://support.mozilla.com/en-US/kb/Firefox+will+not+start

Firefox will not load when I double click icon, but is "running " in the backgr

Just recently my firefox will not open at all. I ahve tried to unistall and then reinstall and that did not help. When I go to shut down my computer, it states that firefox is "not responding" and do I want to end the program. HELP!!

See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* [[Firefox hangs]]

When I compose an E-mail my address book will not open when I click on TO or CC, but it does work on other computers and also if I use explorer.

My address book will not show when I click on the TO or CC button, a mozilla page does open but there is no content. My E-mail accounts work fine on other computers. It also works fine on this computer if I use Explorer instead.

"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). 
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]] 
Your plugins list shows outdated plugin(s) with known security and stability risks.
* Shockwave Flash 10.1 r53
* Java Plug-in 1.6.0_11 for Netscape Navigator (DLL Helper)
Update the [[Java]] plugin to the latest version.
*http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE)
Update the [[Flash]] plugin to the latest version.
*http://www.adobe.com/software/flash/about/
Update the [[Adobe Reader]] plugin to the latest version.
*http://get.adobe.com/reader/otherversions/
You can also try to disable the "My Web Search Plugin Stub for 32-bit Windows". 
See [[Troubleshooting plugins]]
http://www.safer-networking.com/removemywebsearch.php
http://www.pchell.com/support/mywebsearch.shtml - PC Hell: My Web Search Removal Instructions

My itunes will not open when I click on the icon. An system error appears. "the program can't start because MSVCR80.dll is missing from your computer. Try reinstalling the program to fix this problem." Any ideas on how to resolve, I have tried installing

My itunes will not open, it displays an error that MSVCR80.dll is missing. I tried reinstalling itunes but it fails because the service is not able to start.

Same thing happened to me. I ended up completely uninstalling itunes then downloaded it again from http://www.apple.com/itunes/. If you're using firefox, for some reason itunes will not download and I don't know if using googlechrome will also have problems,so just to be sure that it will work on your first try, use internet explorer when you download itunes. Good LUCK!!

Removed working Firefox 7, Installed Firefox 10.0, Firefox will not load. When I click on icon, firefox.exe process shows briefly in task manager, then goes away....no errors, nothing

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