I cant open firefox, everytime i click on it it just fades away!

I have reinstalled it but it still doesn't work. And the little app thing on the pc, when i click it it just fades away. Can you please help!!

Hi JakeBubber ,
We might be able to fix this by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
#Download the latest Desktop version of Firefox from http://www.firefox.com and save the setup file to your computer.
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING:Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See [[Back up and restore information in Firefox profiles]]. 
Please report back to say if this helped you!
Thank you.

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I cant access firefox, everytime i try i get that windows can't find the file, i tried redownloading it but it still gave me the same message?

i cant access firefox, everytime i try i get that windows can't find the file, i tried downloading it again but it still gave me the same message. the problem has nothign to do with my internet because it wonks on internet explorer and everythign is fine, my computer just can't access firefox for some reason. i tried uninstallign ti adn then installing it again, but that didnt work, i tried installing a different version and it still didnt work.
okay the exact message is" Windows cannot find 'C:\Program Files\Mozilla Forefox 4.0 Beta 1\firefox.exe'. make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search.
Nothing happens after i install is the "Launch Firefox now" checkbox set, the same message comes up.
i usually start firefox from the shortcut i have on my desktop but when this happened i thought that the shortcut is the problem, but i went to the Mozilla firefox folder and tried it from there, but it didnt work. i also tried downloading different versions of firefox but that didnt work either.

can you tell me the solution to "windows cant find firefox" error. thanks.

My firefox updated, then said unable to update, now i cant open firefox at all.

My firefox updated, then said unable to update, now i cant open firefox at all. I am unable to access the toolbar to make any setting changes .
When you click on the firefox icon nothing happens. i can right click on the icon to disply proprties etc.I have tryed to open firefox with my firewall turned off but nothing happens.
If i have to download firefox again from their website will i loose all my favourate websites in my favourite listings.

* Download a fresh Firefox copy and save the file to the desktop.
* Firefox 4.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Firefox 3.6.x: http://www.mozilla.com/en-US/firefox/all-older.html
* Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
* Do not remove personal data if you uninstall the current version.
* 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 (not in the Firefox program 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.
* http://kb.mozillazine.org/Profile_backup
* http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox

Just installed 9.0.1 everytime I click on the desktop shortcut I'm prompted by windows to select a program to open firefox.exe. Why doesn't it just open like it used to?

The only way I can get Firefox to open is if I right click on the shortcut icon and select "open as administrator"

Hello, try these free programs to scan for existing malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/viruses/disinfection/5350 Anti-Rootkit Utility - TDSSKiller]
* [http://general-changelog-team.fr/en/downloads/viewdownload/20-outils-de-xplode/2-adwcleaner AdwCleaner] (for more info, see this [http://www.bleepingcomputer.com/download/adwcleaner/ alternate AdwCleaner download page])
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
then, if your laptop in clean try a clean re-install :
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from https://www.mozilla.org/en-US/firefox/all/ and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, if exist, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
Now, go ahead and reinstall Firefox:
Double-click the downloaded installation file and go through the steps of the installation wizard.
Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
Thank you.

I cant open firefox.. it was checking compatibility of add ons and wont quit checking

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I am not clear what your problem is and importantly whether you are trying to ask for help with Firefox.
If you have a Firefox problem can you explain what you need help with please. If the problem is with a new Windows 8 operating system you will need to find a suitable forum to discuss that.
A websearch will turn up many suitable fora one possibility is
* http://windowssecrets.com/forums/forumdisplay.php/66-Windows-8-Forum
The people who answer questions here, for the most part, are other Firefox users volunteering their time (like me), not Mozilla employees or Firefox developers.
If you want to leave feedback for Firefox developers, you can go to the Firefox ''Help'' menu and select ''Submit Feedback...'' or use [https://input.mozilla.org/feedback this link]. (You'll need to be on the latest version of Firefox to submit feedback). Your feedback gets collected at http://input.mozilla.org/, where a team of people read it and gather data about the most common issues.

I cant open firefox after an upgrade only box says to restart computer which i have 10 times

a box came up to upgrade firefox i did, now everytime i click on firefox icon from desktop its keeps saying "Your computer must be restarted to complete the upgrade of firefox. Do you want to restart now.
ok I HAVE DONE THIS 20 TIMES AND STILL NOTHING PLEASE HELP

Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
Please report back to see if this helped you!

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I have been using firefox for years, and never have had any trouble !!..approx 2 months ago while using facebook..my laptop screen 'freezes'..so iwas forced to Ctrl+Alt+Delete..next day when i tried to open firefox..this pop up stated that 'firefox was running in different location and not responding'..I then downloaded 'windows explorer' and a few days later..i un-installed firefox..and re-installed firefox..only to find that the problem still persisted to this day..I then used 'trojan hunter' 'windows emergency' and 'windows defender'..all saying..your system is running at 100% 'Internet explorer' now has pop up blocker when i enter facebook."Internet explorer cannot open this page"..I am now forced to use my Google Mail threads to facebook..to log in to facebook!! help help..i want my Firefox Back !!

There are various causes for this error, see [[Firefox is already running but is not responding]] for details.

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When I try and open version 5 I get this message " A script on this page may be busy or may have stopped responding, you can stop the script now or you can continue to see if the script will complete"
Error message
Script: chrome://tavgp/content/libs/include.js:595. If I click the stop script button in the error message box firefox eventually opens, if I click the continue box it wont open. I have a fast computer with heaps of Ram and hard drive space running windows xp pro. I have uninstalled and reinstalled firefox, then rebooted even gone back to an earlier restore point but it still wont work. please please can someone help me as version 4 was perfect. really frustrating as I love firefox:-(

If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

I cant open new tabs by clicking the blank area next to the tabs

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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.

Cant open files via double click on file icons

hello
i recently wiped my drive and did a clean install of 10.5.1 (lepperds).
here are specs for my machine:macprobook 2.33ghz intel core 2 duo w/ 2gb 667mhz ddr2 sdram, 120gb HD (72.25GB available), serial # W2186148K4Y, username:billysmac password:••••••••••••
now, when i double click files created in PhotoShop & Image Ready (not sure about other apps / files), the application will open but the file i originally double clicked does not open.
the same is true if i try to open file via: apple + single click on file >>>>> then drag down to 'open with app xyz" in the sub menu that appears. app opens but file does not.
the only way to open a file is to activate PS or IR followed by: menu bar >>> file >>> open >>>> finder window >>>> nav to & select file >>> click open in finder window.
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any suggestions?
thanks
billy

Hi,
this might help you: http://kb.adobe.com/selfservice/viewContent.do?externalId=329996&sliceId=1
In all cases where I had this problem it always was the Unit Types problem.
Björn

Cant open firefox on second screen on computer with two screens with two graphics cards.

I have a computer with two screens and two diffrent graphics card. One of them is onboard GC and another one is USB GC. I am running two instances of FF and it works fine with 3.6.20 version. But when I update to the latest version of FF either 5 or 6 this does not work. Even if i try to open one instance of FF on second screen on USB GC , I cant see anything> i have to move it to the main screen to see the FF window and will not work on the extended screen. I am using windows 7 pro 32 bit and the screen resolution is set to 1280x1024 on both the screens.
Can you please help.
Thanks.
Regards
PJ

Try to disable hardware acceleration.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
If disabling hardware acceleration works then check if there is an update available for your graphics display driver.
*https://support.mozilla.org/kb/how-do-i-upgrade-my-graphics-drivers

Cant open firefox on multiple computers due to roaming profiles?

Hello. I am a teacher and multiple students log on to a network with the same user name and password. When they try to dun firefox on multiple computers only one will work. The others say that firefox is already running even though it isn't. i suspect roaming profiles. Internet explorer works fine but firefox doesn't. Is there any fix for this that will allow me to run multiple instances of firefox on seperate computers when users on the network log on with the same user name and password?

Unfortunately, those so called amazing improvements you reference haven't changed much when it comes to the browser freezing on startup when it's being opened. 278,228K memory using when not doing much. Have a couple of small plug-ins but probably not much compared to most FF users.

I cant open firefox, i have reloaded. unintsalled. still zip.

it started with upgrade, now i just click to start, then it dies. i have uninstalled, and cache.( windows 7.my laptop) i have been using firefox 2 years.
i have got firefox on my desktop computer as well, this works fine (xp professional)

It is possible that your security software (firewall, anti-virus) 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
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.
You can use one of these to start Firefox in Safe Mode:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Help > Restart with Add-ons Disabled
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Cant open firefox at all

i have installed firefox i am using windows xp i have the icon on my desktop and it is in program files but it will not open?

* Download a fresh Firefox copy and save the file to the desktop.
* Firefox 4.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Firefox 3.6.x: http://www.mozilla.com/en-US/firefox/all-older.html
* Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
* Do not remove personal data if you uninstall the current version.
* 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 (not in the Firefox program 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.
* http://kb.mozillazine.org/Profile_backup
* http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox

Since updating firefox to 5.0 my computer is having numerous problems and i'm asked what program i want to use to open firefox when i click on the desktop icon. What's the problem?

When i click on control panel to remove the program i get the file not found box. if i try to use verizon or internet explorer, i get the file not found box. I tried to download a program i need to view netflix movies and after the program downloads i'm told file not found.

'''''XP internet Security 2012''''' is malware masquerading as anti-malware. You may need to go to an un-infected computer to read the following article, to download the tools needed to remove it (then transport them to your infected system on a CD or DVD; avoid using a pin/jump/thumb/USB drive to transport the files as it can become infected).
*http://www.bleepingcomputer.com/virus-removal/remove-xp-internet-security-2012
'''If this reply solves your problem, please click "Solved It" next to this reply when signed-in to the forum.'''
Not related to your question, but...
You may need to update some plug-ins after you get the infection cleared. Check your plug-ins and update as necessary:
*Plug-in check --> http://www.mozilla.org/en-US/plugincheck/
*'''''Adobe Shockwave for Director Netscape plug-in''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox]
*'''''Adobe PDF Plug-In For Firefox and Netscape''''': [https://support.mozilla.com/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*'''''Shockwave Flash''''' (Adobe Flash or Flash): [https://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]
*'''Next Generation Java Plug-in for Mozilla browsers''': [https://support.mozilla.com/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

I cant open firefox, everytime i click on it it just fades away!

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