Firefox won't even start in safe mode.

I keep trying to start firefox. It keeps saying its not responding. It gives me options to start in safe mode or reset Firefox. But I've tried both of these options and nothing works.

First, download the full installer and save it somewhere.
'''[http://www.mozilla.org/en-US/firefox/all/ Download Firefox Full Installer For All languages And Systems]''' {web link}
Now, totally remove Firefox from your system. Your user profile is
stored in your user folder on the computer. Leave it alone for now.
'''[https://support.mozilla.org/en-US/kb/uninstall-firefox-from-your-computer Uninstall Firefox from your computer]''' {web link}
After Firefox has been removed, reboot the computer.
Then try installing Firefox.

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Firefox used to work on my windows 8 machine, now it does not, even starting in safe mode and after un/reinstalling. message "firefox has stopped working".

Firefox used to work fine, then a few days ago it just stopped. When I try to start it, it comes up with a message that "firefox has stopped working". That message comes up over the box that asks if I want to start in safe mode or reset firefox. when i try to close or cancel that message so I can try starting in safe mode, both sets of messages go away.
if I try to start in safe mode using the shift key, the same thing occurs. The same thing occurred after I uninstalled and reinstalled.

Do a clean reinstall and delete the Firefox program before (re)installing a fresh copy of the current Firefox release.
*Download the full Firefox installer and save the file to the desktop<br>http://www.mozilla.org/en-US/firefox/all.html
If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.
*Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.
Remove the Firefox program before installing that newly downloaded copy of the Firefox installer.
*(32 bit Windows) "C:\Program Files\Mozilla Firefox\"
*(64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"
*It is important to delete the Firefox program 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 personal 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

Why did firefox and thunderbird both start in safe mode?

Turned on my computer, ran firefox and thunderbird like I always do, and they both started in safe mode. They both showed a box before opening that said they are running in safe mode. Why would they do this?

My PC was lagging because I had just started it. I clicked on the icons and then went into a text editor before they finished loading and was pressing shift while doing some text editing lol. Thanks for solving the mystery, I never knew about shift clicking to start safe modes.

After updating Firefox, it wants to start in safe mode, when you click reset & restart it starts and runs fine, how do I make it stop opening in safe mode?

I recently updated my Firefox to 3.5.9 for Google pack, after doing so Firefox would only open in safe mode. So I started in safe mode that one time. Everafter, when starting firefox it always opens a dialog window about safe mode, I click the option to reset the toolbars and restart, and it starts normally. I'd like to make it stop opening with this dialog, and just open normally without asking about safe mode.
== This happened ==
Every time Firefox opened
== I updated Firefox

See: http://support.mozilla.com/en-US/kb/Firefox+is+stuck+in+Safe+Mode
Your Firefox 3.5.9 is 2 versions behind. The current version is Firefox 3.5.11 which includes several security updates. In addition, support and updates for the Firefox 3.5.x series is planned to end in August 2010. Consider upgrading to the latest version Firefox 3.6.8:
Download Firefox 3.6.8 here: http://www.mozilla.com/en-US/firefox/all.html
See:
http://support.mozilla.com/en-US/kb/Installing+Firefox
http://support.mozilla.com/en-US/kb/Updating+Firefox

Have just installed FireFox and it only starts in 'Safe Mode' ???

I was having problems uploading photos to Photobox... 'They' suggested installing FireFox
I haven't yet put a short cut on the tool bar, so when I click 'start' Firefox is highlighted as a new perog, but it states that it will only start in '(Safe Mode)'

Those disk permissions results are harmless and are irrelevant here.
All external hardware is disconnected when you try this?
Do you have Xcode installed?

Firefox crashes on opening within seconds. started suddenly several weeks ago and i haven't been able to get on since. i reinstalled but updating didn't work. it won't even open in safe mode. HELP!

firefox crashes on opening within seconds. this started suddenly a few weeks ago and despite several daily attempts, i still can't load firefox application. it crashes immediately upon startup every time no matter what and crash reporter arrives. i have researched all the articles and followed their suggestions. i installed the newest version of firefox and still get the same results. i can't even open firefox in safe mode.

You do not want to remove the program directory with a Mac because Firefox is most likely installed in the system Applications directory which is where the system applications are stored.
Have you tried removing the Firefox plist file from your user library? I have Mac OS 10.6.8 as well, and that file is at /Users/<user name>/Library/Preferences. Close Firefox and remove that file, then start Firefox again.

I haven't been able to get on firefox for weeks! it crashes on opening within seconds. i reinstalled hoping that it needed to be updated but that didn't work. it won't even open in safe mode. i am desperate...

all of a sudden a few weeks ago i cannot get on firefox. it crashes immediately upon startup every time no matter what and crash reporter arrives. i have researched all the articles and followed their suggestions. i installed the newest version of firefox and still get the same results. i can't even open firefox in safe mode. i dont' know what else to try and really need my favorite browser back and all my bookmarks and passwords...

since i exhausted every angle throughout january and early february, i really can't pinpoint what made the difference today but... IT'S WORKING NOW! firefox had been deleted from my computer for a few weeks now so with renewed determination i searched every single folder on my entire hard drive and found 3 random files with mozilla or part of the word mozilla in them and deleted them. i shut down the computer and restarted it a few hours later. i downloaded firefox 10 (even higher version than the one i was updating to a month ago) from google chrome and installed it. so thank you for your input and effort to help!

Firefox won't open no error message, tried everything in the help article nothing works. Won't even open in safe mode. help!

When I click on the firefox icon (windows 7) nothing happens. not even in safe mode. Nothing in the help article works. I've tried uninstalling twice.

Hi mcclausky, you may need to manually remove a policy setting from the registry. You also should scan for malware that might have created this problem.
This article lists scanning and cleaning tools other Firefox users have found helpful: [[Troubleshoot Firefox issues caused by malware]].
To check your Windows registry for policy settings that might affect Firefox or other programs, I suggest consulting a Windows forum or Microsoft's forums. For example:
* http://windowssecrets.com/forums/
* [http://answers.microsoft.com/en-us/windows/forum/windows_8-system/this-operation-has-been-cancelled-due-to/9677848e-072d-4206-87f4-9da9284d6151 This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator. - Microsoft Community]
* [http://answers.microsoft.com/en-us/windows/forum/windows_xp-security/restrictions-this-operation-has-been-cancelled-due/8af1d0cd-8fbd-4223-9396-86d7497bb275 Restrictions. This operation has been cancelled due to to restrictions in effect on this computer.Please contact your system administrator. - Microsoft Community]

Firefox keeps wanting to start in Safe Mode and it says I can make some changes permanent such as "Disable all add-ons" and others. When I select one of the options I can then "Make Changes and Restart".

When I make my selection it can then proceed to use Firefox. However the next time I open Firefox I get the same problem.
I'm using Windows 7. I have used Firefox for many years with Windows XP and never had this problem. Is there a solution?

See [[Firefox is stuck in Safe Mode]]
"Reset all user preferences to Firefox defaults" on the [[Safe mode]] start window.
Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini, extensions.sqlite) and compatibility.ini in the Firefox [[Profiles|profile folder]] to reset the extensions registry. New files will be created when required.
See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the "Find Updates" button (in Firefox 4: right-click the extension -> "Find Updates") to do a compatibility check.

Firefox always prompts to start in safe mode.

Whenever I start Firefox, it shows a prompt that asks me if I want to continue in safe mode or to quit. It also shows me options like "Reset all user preferences" or "Disable all add-ons" that once checked, will allow me to press the "Make changes and continue" button.
My Firefox version and all my plugins/addons are up-to-date.
Here's what I've done so far:
1. I've already disabled all my plugins and add ons, then quit Firefox. When I open Firefox again, it still shows me the safe mode prompt.
2. I restarted my computer and ran Firefox, same deal.
3. I tried resetting my user preferences as a checkbox option in the prompt, then quit and reopen Firefox, same result.
4. I reinstalled Firefox by downloading the latest version (which I already have). The safe mode prompt still persists.
Mac OS X 10.7.3 (Lion), Firefox 10.0.2

I solved it. I've previously set my Quicksilver app to open Firefox with a trigger Option + Command + F. Holding the option key while opening Firefox will always show the Safe Mode prompt. I changed my trigger to Command + Shift + F, and now the safe mode prompt is gone :)

I keep getting this crash report when trying to start firefox, I also tried starting in safe mode and got same crash...bp-08e24e43-0839-4ffc-ba24-bc2e02130219..

I've tried uninstalling, restarting, and re-installing and get same crash

Okay I went to websense and tried contacting support...I was required to create account. So, I did, when I clikcked on open support ticket, it says I'm not authorized to view page....I don't even know what websense is....is it a program I can uninstall on my computer? This is ridiculous....

Won't boot in windows safe mode

I have a satellite 205, 20 months old, that began intermittently going to blue screen, then the problem became permanent upon start-up, including a partial display of windows logon screen, then the blue screen wtih message, "attempt to reset display driver & recover from time out failed", with reference to driver igdkmd32.sys. I could boot in safe mode. Attempts to update the driver resulted in a successful boot once, but soon went back to blue screen and boot menu. I restored with CD to out-of-box condition, but no improvement; worse if anything. It continuously recycles after initial start-up window and won't even reboot in safe mode. It shows a couple of bands of screen when trying to start windows, including black dots and even strange sound like a plucked guitar string. I booted from CD several times, and ran memory checks and chkdsk, even reset the memory. No problems revealed.
I can't find anything else to try and would appreciate any suggestions.

I restored with CD to out-of-box condition, but no improvement; worse if anything.
Service time.
Locate a Toshiba Service Center
-Jerry

Firefox crashes before it can start up, can't even get to safe mode.

Hello,
Firefox automatically downloaded and installed an update this morning and now it won't start at all. I've tried starting in safe mode (shift-clicking to start), but I can't even get through there. It's just crash after crash after crash and I'm quickly losing patience.

After doing more digging, I found that updating my version of RoboForm was the fix. At least so far... we'll see how long it lasts!
If you're running RoboForm and can't get in, try to update RoboForm from IE, then try again.

Firefox won't close without using Task Manager - end process; can't start in safe mode or disable add-ons

I've been having a memory leak/hanging problem for weeks -- FF slowly increases memory usage until it's at almost 100% and then freezes and I have to shut it down via Task Manager/end process.
Last week I updated to FF 12, and I also added the Web Developer 1.1.9 add-on. Now every time I open Firefox it tries to go to the "Web Developer installed" page, but the page never loads. Nothing else will load either.
I can't start in Safe Mode because of the problem with having to close it in Task Manager. I select "restart with add-ons disabled" and it just never opens. The Add-On manager page won't load, so I can't disable Web Developer to see if that's the problem.
I've uninstalled Firefox and reinstalled, and it still goes right back to the Web Developer page when I open the freshly installed copy.
Help, please!

Have you already tried clearing the browser cache, opening a blank tab, and trying to open some other website ?
* [[how to clear the cache]]
Instead of trying to open safe mode from within the User Interface menu have you tried alternative methods such as holding the shift key when you start Firefox. (After checking for running Firefox processes or plugincontainer and killing them if found )
* see [[safe mode]]
* [[firefox hangs]]
If using safemode does not help first of all try creating and using a new profile.
* [[Basic Troubleshooting#w_8-make-a-new-profile]]_8-make-a-new-profile
If all the above fail then try a clean re-install of Firefox
* [[Basic Troubleshooting#w_7-reinstall-firefox]]_7-reinstall-firefox

Downloaded Firefox yesterday. Every time I open the Firefox browser, it starts in Safe Mode even though I have shut down and restarted my computer several times

I have Windows OS. I downloaded Firefox yesterday. Every time I open the Firefox browser, it starts in safe mode. I have restarted my machine several times -- Firefox still starts in Safe Mode. My favorites from IE copied to Firefox fine, and Firefox is now my default browser...it just keeps opening in Safe Mode.

I downloaded the toolbar. When I was done using the computer, I put it to "sleep." The next time I "woke" the computer and went to Firefox, the toolbar was gone. When I downloaded the toolbar again, I got a box in the upper left hand corner of the screen stating Firefox BLOCKED the toolbar, and did I want to allow it. There was NO option to allow always-it's just a one time deal. When I shut down for the day, I expected it to remain, but no-next time I fired up firefox, NO TOOLBAR. I pulled up Inbox dollars again, clicked on download toolbar, got the box stating it's blocking the toolbar, etc, etc, etc. Unless Firefox upgrades daily, or in some cases, several times in one day, I'm going to stick with my description that the toolbar magically disappears EVERY TIME I OPEN
FIREFOX!!!
I don't profess to be any type of computer whiz, I'm totally self-taught, and it's not beyond the realm of possibility that I'm doing something wrong. I've been using Firefox for about a week, so I'd welcome any help!

Firefox won't even start in safe mode.

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