Firefox will not open on my computer, even after reinstall, with no error message or when I try to run "C:\Program Files\Mozilla Firefox\firefox.exe" -p. Help?

I recently installed firefox so I could use an adblocker. It installed just fine, and it worked just fine for about three days. Then yesterday it stopped opening. I'm on a Toshiba running Windows 7. The icon highlights when I click on it, but then it stops and won't open the browser at all. When I try to run it with the manual command "C:\Program Files\Mozilla Firefox\firefox.exe" -p, I get the error message, "C:\Program Files\Mozilla Firefox\ refers to a location that is unavailable. It could be on a hard drive on this computer, or on a network. Check to make sure that the disk is properly inserted, or that you are connected to the Internet or your network, and then try again. If it still cannot be located, the information might have been moved to a different location." I installed it to that location, and I don't need a disk. I'm connected to the Internet just fine and my other browsers (Chrome and IE) work the same as always. But they're swamped with ads and I really was happy wih Firefox when it was opening...how can I fix this issue?

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!

Similar Messages

Firefox will not open on my computer, even after reinstall. Please help?

I've been using Firefox for a long time and it's been working well. I'm on acer Windows 7. However now it will not open even when I try to run "C:\Program Files\Mozilla Firefox\firefox.exe". Chrome or Internet Explorer work fine. I also reinstalled Firefox and it still doesn't work.
Here's the id of my latest crash (from 30.4.2014): bp-4e981129-aea6-4b23-87a2-739b42140430
Thank you for any help with fixing this.

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
Profile Backup and Restore
*http://kb.mozillazine.org/Profile_backup
*https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Firefox will not open on my computer the majority of the time. If I shut down and restart it will work sometimes, but not always. This started recently in the last two weeks. Today is June 12th 2011.

Firefox will not open on my computer the majority of the time. If I shut down and restart it will work sometimes, but not always. This started recently in the last two weeks. Today is June 12th 2011.

See:
* http://kb.mozillazine.org/Browser_will_not_start_up

Firefox will not open on my computer

From sometime last night to today (11/18) Firefox will not open when I click on the shortcut link from my desktop. I've tried to add another profile by clicking on start/run/firefox.exe but that doesn't even work. What would be the next step?

Do any error messages display when attempting to open Firefox? 
In the task manager, is the <code>firefox.exe</code> process running?
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 soon.

Firefox will not open without restarting computer

I do not shut down my computer as we use "Log Me In" so I and another person can log in from wherever we want, anytime. About 5 months ago the problem started. I can open FF when I come in every morning, but when I come back in the afternoon or later in the evening, Firefox will NOT open.. It does nothing.. I can click to open, use the drop down and select open, nothing happens. I have to restart my computer every afternoon in order to get Firfox to open.. So I have begun transferring all my links to IE as it does not have any problme like that.

Your plugins list shows outdated plugin(s) with known security and stability risks.
* Shockwave Flash 10.0 r45
* Java Plug-in 1.6.0_05 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/

Installed Firefox on Mac (OS 10.5.8) Will not open a browser window even after rebooting. Also - Must "Force Quit" to exit Firefox

I installed Firefox on my Mac today (Mac OS 10.5.8) However File>New does not open browser window. Nothing happens. I rebooted and launced Firefox again but this did not help. I had been using Safari. Firefox is clearly running and I must do a "Force Quit" to quit Firefox.
== This happened ==
Every time Firefox opened
== I installed Firefox on my Mac today. ==
== User Agent ==
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_8; en-us) AppleWebKit/533.17.8 (KHTML, like Gecko) Version/5.0.1 Safari/533.17.8

Hello John.
Hopefully this support article is what you need:
https://support.mozilla.com/en-US/kb/Firefox+will+not+start
Also, you may be interested in this one:
http://support.mozilla.com/en-US/kb/Firefox+hangs

Firefox will not open. I have uninstalled and reinstalled and the setup wizard didnt come up. Also Firefox still will not open.

my firefox was working fine till about 5 days ago and when i tried to open it up it would not. No matter how many times i clicked it. It would never open. I then proceeded to uninstall the program and then i redownloded it. I never got the set up wizard to pop up to finish. I have now tried to redownlod it again and still no change. I have the Icon on my computer but it will not open. Also I have even tried to uninstall it again and it will not uninstall. PLEASE HELP!!

Could you walk us through what happens when you try to open the iTunes Store, please?

Firefox will not load to the web, even after 2nd download.

I have used firefox as a web browser because our school page works best with it. I have used firefox for over three months. This weekend firefox will not load. The screen message says unable to load web page, try again button is displayed, all to no avail.

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.

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.

After updating to Firefox 15 on my Vista machine Firefox will not open. I have removed and reinstalled it but still won't open. How do I fix this?

I am running Windows Vista Home Premium and after doing the update for Firefox 15, firefox won't start. I get no error messages or anything it just won't start. I removed Firefox and reinstalled but that didn't help.
What is next to try?

Hi lwhealon
try from Start > Run > and type to check 1 of :
firefox -safe-mode
"C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode '''or'''
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -safe-mode
(to enable the Run box in win 7 see: [http://blogs.msdn.com/b/tims/archive/2006/09/18/windows-vista-secret-3-bringing-back-start-run.aspx enable Run box win 7] )
also check if [http://kb.mozillazine.org/Firewalls Firewall] or/and other security software blocking firefox start (like ad-blocker, web-accelerator etc).
[http://kb.mozillazine.org/Kill_application With Firefox completely closed] (probably because you can not start it), open the [http://kb.mozillazine.org/Installation_directory application folder] (by default, C:\Program Files\Mozilla Firefox on Windows) rename firefox.exe to firefox1.exe, then double-click firefox1.exe. If Firefox runs without problems, it could indicate that your firewall is blocking Firefox.
good luck

Read the fixes and still having problems. Firefox will not open at all and I receive a crash report upon launch. Have restarted, shut down, run virus and malware checks and even tried downloading and reinstalling with no response. Please assist.

Read the fixes. Cannot open Firefox in safe mode. Have tried reinstalling Firefox. Crash occurs each time I try to launch Firefox. Have run scans, checked for malware, spyware, installed all windows updates and still no luck.
Have accessed my crash reports. One of the reasons indicated is:
GenuineIntel family 6 model 23 stepping 10
Crash Reason
EXCEPTION_ACCESS_VIOLATION_WRITE
Have no idea how to fix this and have had crash reports since yesterday evening.
Signature: nsStandardURL::SchemeIs(char const*, int*)

Sorry believe something got miscommunicated. Wasn't trying to qualify firefox as malware - was terming it that way because the malware was crashing Firefox and no other issue. Worked on it and had isolated the virus in avast (put it in the chest) and was searching for assistance on why even after isolating the virus and restarting (some forums had indicated to then uninstall and reinstall Firefox, which I did), still would not launch without the crash report.
Worked the problem and eventually installed a 5.0 version of Firefox and it launches. Only seems to have the crash report with 6.0 or higher.
The forums had suggested that if after isolating the malware in avast or disinfecting it with MBAM (tried that too), to uninstall and then reinstall the latest version of firefox. That's when I tried the older versions. Had run a boot log scan as well and didn't see any additional problems. Just can't launch in 6.0 or higher.

Firefox will not open - disappears from Task Manager after a few seconds

Everything was working perfectly fine last night. I turn on the computer this morning, try to open firefox - nothing. I click it and there's not even an error message or anything. In the Task manager, the firefox.exe appears in the Processes tab for a couple of seconds then it just disappears. I've tried running the computer in Safe Mode to open it, still nothing. I tried the Firefox Safe Mode option, still won't open. I uninstalled, then reinstalled, that didn't help.
Any suggestions? IE works fine, but I really hate using it.

A possible cause is security software (firewall) that blocks or restricts Firefox without informing you about that, 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. 
See:
* [[Server not found]]
* [[Firewalls]]
See also http://kb.mozillazine.org/Browser_will_not_start_up

Firefox will not open, and I can't uninstall/reinstall because it says "close Firefox first"

After running Ccleaner today (and it asked me to "close Firefox or the internet cache will not be cleared", but Firefox was closed or so I think), I can't open Firefox at all; double-clicking the Firefox icon on the desktop does nothing, and no other way works. I thought of doing an uninstall/reinstall but it says "close Firefox first" - but for me it is truly closed.

See if you can Force Quit things holding CMD+Option+esc keys.

Error message: Bad Image: The application or DLL C:\Program Files\Mozilla Firefox\MOZCRT19.dll is not a valid Windows image. Please check this against your installation diskette.

I was in Firefox but I exited. Soon I opened it again, it
installed updates and this message showed up. I tried
scanning the file, looking at it, and everything short of
reinstalling Firefox (which every other person with this
problem has tried but it has not worked.). I installed
Firefox by USB drive, not a diskette, and I no longer have
it with me, so I can't check it from there. What should I
do to fix this problem?

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop. 
Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer. 
Don't remove personal data when uninstalling. 
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. 
 
You can skip the step to create a new profile, that is not necessary for this issue.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall
You may have a malware problem if you get unrelated pop-ups opening or are redirected to unrequested websites.
If that is the case then do a malware check with a few different programs.
Every program finds different malware, so you need to use more than one program to scan.
Do a malware check with a few malware scan programs. 
You need to use all programs because each detects different malware. 
Make sure that you update each program to get the latest version of the database before doing a scan.
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]

Firefox will not load Java in Linux - even after following all instructions on net I can find - what am I doing wrong??

The problem I've got is I'm currently running Puppy Linux on my laptop.
Now I've tried everything I can to get Java working under either Firefox, Chromium or Seamonkey (I have all three browsers on my computer).
For firefox and seamonkey I have tried the following -
downloaded the tar.gz file for java
unpacked it to /opt/java
gone to /user/lib/mozilla/plugins and run the command
ln -s /opt/java/plugin/i386/ns7/libjavaplugin_oji.so
to create the symbolic link to the plugin
checked that the plugin is executable (actually even tried giving everything full permission to read/write and execute it)
For Chromium done a similar thing but put the symbolic link in /usr/lib/chrome-linux/plugins folder instead.
Restarted the web browser, even tried restarting X Server in case the browser is running somewhere in the background.
All three browsers can pick up all the other .so plugins in that folder except Java.
When I click check plugins on firefox I get to the page about "Missing Java? - For your safety Firefox has disabled your outdated version of Java. Please upgrade to the latest version".
However the version I've downloaded is Version 7 Update 9 which is exactly the same one that is available as the latest version from Java themselves (it was only downloaded from that link a couple of minutes before, I've even tried re-downloading it just in case there has been an update within those 5 minutes).
If I go into the Java folder and run ControlPanel the Java control panel pops up and it knows where Java is installed and everything.
So what on earth is going on? Am I installing the plugin in the right directory? I'm guessing so as that is where all the other plugins are stored and Firefox, Chrome and Seamonkey are picking all the others up fine, or could there be an older version of Java lurking around somewhere on my system that Firefox, Seamonkey and Chrome are all trying to use?
I've also tried downloading the RPM and installing that into the /usr/java folder and replacing the symlink from /opt/java to the one in the /usr/java folder and still nothing.
I just really can't understand it 'cos it's picking up all the other plugins like Gecko and even installed Flash in the same way and that works fine.

Thanks cor-el looks like Oracle need to update their linux installation instructions then. If only I'd have known that before doing all sorts to get it working.
I now have Java in Firefox, Chrome and Seamonkey :) :) :) :) :).

Firefox will not open on my computer, even after reinstall, with no error message or when I try to run "C:\Program Files\Mozilla Firefox\firefox.exe" -p. Help?

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