Firefox will not open up in Windows 7.

Firefox has stopped working in my computer. I have uninstalled and reinstalled 3 times now, and it will not load up. Many articles online instruct me to clean cookies, etc. but I cannot do anything if the program doesn't load. It does not even show as loaded in my Windows Task Manager. Please advise.

If you download the install stub for the most recent version of Firefox is will install over the existing profiles. Please try this, but make a back up of your profile first:[[Back up and restore information in Firefox profiles]]

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Firefox will not open a new window for a website when it is supposed to and then will not close properly. I have un-installed and re-installed and problem persists, why? How is it solved?

When I go on to some websites and click on certain things it wants to open a new window to display the information etc.
I.E. On an agency job search site I click to do a detailed job search which should open in a new window, but this will not happen now on my Firefox.
Firefox was working perfectly ok on Saturday 11th September but for some unknown reason has acted up since Sunday.
There have been no Windows updates which could effect this and the laptop is otherwise working perfectly ok.
Nothing has changed from Saturday Night to Sunday Night that I can see.
I have even tried to do a system restore to solve the problem but with no success.

I also have this problem. I cannot open links from a discussion board I frequent nor can I open links from my email. Also after opening my email, I cannot go to any other sites except my home page. I can then go no where else.
When I close Firefox and try to reopen it, it does nothing! I have to bring up the Task Manager and end the Firefox process before I can get back in.
To the best of my knowledge, this problem started with the new update to Ver. 3.6.9. I am running Windows XP Media Center 2005

Firefox will not open a new window How do I fix it?

When on a web page, If I right click and choose "Open In A New Window", it will open a new window but the window is always blank. I can copy the address and paste in in the new window and it will then take me to the web site but will not automatically open and take me to the site. Is there a fix for this?

Try the Firefox SafeMode. 
''A troubleshooting mode, which disables most Add-ons.'' 
''(If you're not using it, switch to the Default Theme.)''
# You can open the Firefox 4/5/6/7 SafeMode by holding the '''Shft''' key when you use the Firefox desktop or Start menu shortcut.
# Or use the Help menu item, click on '''Restart with Add-ons Disabled...''' while Firefox is running. 
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.''
If it is good in the Firefox SafeMode, your problem is probably caused by an extension, and you need to figure out which one. 
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

Firefox will not open a browsing window, program opens, no window (4.0b5, Mac)

just started happening - i open firefox, menu up top opens but no window . . . tried opening new window, new tab, no dice

I also have this problem. I cannot open links from a discussion board I frequent nor can I open links from my email. Also after opening my email, I cannot go to any other sites except my home page. I can then go no where else.
When I close Firefox and try to reopen it, it does nothing! I have to bring up the Task Manager and end the Firefox process before I can get back in.
To the best of my knowledge, this problem started with the new update to Ver. 3.6.9. I am running Windows XP Media Center 2005

Firefox will not open a new window

Have tried using Ctrl+N but no new window opens.
Any website requesting a new window to open function fails.

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")
Your above posted system details show multiple Java Console extensions. 
You can uninstall (remove) the Java Console extensions and disable the Java Quick Starter extension, you do not need them to run Java applets.
See http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions
Disable the Java Quick Starter extension: Tools -> Add-ons -> Extensions 
Control Panel -> Java -> Advanced tab -> Miscellaneous -> Java Quick Starter (disable)
See http://www.java.com/en/download/help/quickstarter.xml - What is Java Quick Starter (JQS)? What is the benefit of running JQS? - 6.0

Firefox will not open unless I run it in compatibility mode (Windows XP SP 3), run it as an administrator, or launch it immediately after a reinstall (the reinstall thing only works once.) How do I fix this?

This morning, Firefox crashed. After this, when I click the Firefox icon, the hourglass appears and then nothing happens. Firefox does briefly appear in the task manager when I do this.
I tried rebooting. I tried reinstalling multiple times. (Firefox will run when I select "Launch Firefox" from the installer. Then the problem occurs again.) I tried safe mode. I have found that Firefox will work if I select Windows XP compatibility mode from the icon properties menu or if I run the program as an administrator. When I do this, Windows asks me if I want a program to be able to make changes to my computer.
I have noticed that a Windows Error Report is being generated each time Firefox will not open.

A possible cause is security software (firewall,anti-virus) 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 and the plugin-container 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

I downloaded Firefox 5.0. Firefox will not open. States running offline. I have a Intel Pentium/Windows XP system.

I downloaded Firefox 5.0. Firefox will not open. States running offline. I have a Intel Pentium/Windows XP system.
This also happened when I tried to download Firefox 4.
Firefox 3.6.18 works fine

You may need to delete the Firefox program folder before (re)installing the latest Firefox. 
In case you still have problems after installing then check your security software.
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
*http://kb.mozillazine.org/Browser_will_not_start_up

Firefox will not open,tried running profile manager but I receive a small window with the word :dialog" in it.

Firefox will not open.Tried uninstalling and reinstalling program without any success.
Tried running profile manager,but a small screen shows up with the word "dialod" in it.
Any assistance appreciated.
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB0.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; .NET4.0C; Tablet PC 2.0)

Can you provide us a screenshot?
Vista/7
Go to Start and type in Snipping Tool then provide a screenshot ,save it, and upload it to any of these file uploading websites.
[http://www.imageshack.us ImageShack]
[www.mediafire.com MediaFire]
[www.kimag.es Kimages]
XP
Press '''FN + PRT SC''' on your keyboard to take a screenshot and Press '''CTRL + V''' in Paint to paste it and save it and upload it.

Firefox will not open st george bank logon window

Firefox will not open the St George logon window. It has for morre than 5 years but in the last 48 hours it has stopped. IE and Crome still do. We have cached web content, opened Firefox in safe mode, uninstalled and reinstalled Firefox 6 times and tried many ideas other people have suggested in the online forum - seems we are not an isolated case! We are using Firefox version 19 and just about ready to uninstall it for the last time out of sheer frustration. I

Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Press and hold Shift and left-click the Reload button.
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Command + Shift + R" (MAC)
Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*http://kb.mozillazine.org/Error_loading_websites
*http://kb.mozillazine.org/Websites_look_wrong

Firefox will not open, a pop up window message says: The application or dll mozilla firefox xul.dll is not a valid windows image. I am using XP and firefox use to work perfectly

Firefox will not open a pop up window says "the application or dll c:program files mozilla firefox xul. dll is not a valid windows range"
== This happened ==
Every time Firefox opened
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB0.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C)

I resolved the problem. I went to CNet and re-downloaded the upgrade. It proceeded as intended and the upgrade is installed and running with no loss of plug-ins, bookmarks, etc.

The firefox will not open new windows

My firefox will not open new windows. It opens new tabs. The problem is in the windows.

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do not click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
If it does work in Firefox Safe-mode then disable all extensions (Tools > Add-ons > Extensions) and then try to find which is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
Create a new profile as a test to check if your current profile is causing the problems.
See "Creating a profile":
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
You can also try to reset Firefox:
*https://support.mozilla.org/kb/Basic+Troubleshooting

Firefox will not open any new tabs since windows update

I have windows 7 64, and recently, when windows automatically updated, my firefox will not open any new tabs, manually or when opening a link...

Uninstall the Ask toolbar and it should work again. There is a compatibility issue with the Ask toolbar and Firefox that prevents new tabs from being opened.

Firefox will not open new window after clicking on link

if I click on a hyperlink in an email message (Apple Mail) then Firefox will not open (if not running).
== This happened ==
Every time Firefox opened

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]]

Firefox will not open. Hangs at "connecting" stage. Non-responsive even to process shut-down via task manager.

Starting yesterday, Firefox will not open at all. It hangs at the "connecting stage." For hours. It will not shut down even using the task manager for applications or processes, and it locks up virtually every other application. I thought I managed to save an open Word document yesterday - it looked like a slow, but normal save during the Firefox hang, but the document was empty when I restarted my computer.
Even though my machine is not pentium 4 based, I tried starting using the Windows XP/M configuration, I downloaded and re-installed (over the top of) the existing version, I verified that no Mozilla processes were running before trying to start Mozilla, and tried creating a new profile. Absolutely no success. Every time (of the dozens) I have tried to start Firefox I have had to force a hard shut-down to get out of the application. I have now unpinned Firefox from my task bar because I keep forgetting and hitting it by reflex.
I am running version 11.0 (at least that is what I just downloaded - I am not positive what I was running yesterday). My system is Windows 7 Home Premium, Intel Core i3, 2.4 gHz, 4 GB RAM, 64 bit OS.
Next option is to restore to a previous version. If that doesn't work, I will uninstall and start over from scratch.

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 and the plugin-container 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
*http://kb.mozillazine.org/Browser_will_not_start_up

I have no navigation bar and firefox will not open in safe mode to reset to default config. Reinstalling doesn't work. Any help please.

I have no navigation bar ever since I closed it to gain more space on the screen. It won't re-open. Firefox will not open in safe mode, but opens immediately in normal mode with the new improper config, so I cannot reset to default config. I erased Firefox and re-installed and it still opens with the same faulty config. Why does Firefox not give me the safe mode dialog box, why can I not re-open the nav bar, and how can I do these two things, please? Firefox is currently unusable for me without a nav bar and without access to the default settings in safe mode. I cannot research the extensions I'm running since I have no nav bar to go to Tools, Add-ons, Extensions.
== This happened ==
Every time Firefox opened
== I closed the navigation bar to gain more space on the screen and I couldn't re-open it. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.4; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

Hit the '''Alt''' key to show the Menu bar, then open View > Toolbars and select Menu bar and Navigation bar, so they have a check-mark.

Firefox will not open up in Windows 7.

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