Firefox crashing before it opens

It has been constantly crashing before it even opens. I have been a FF user for years and I would hate to have to go back to IE or Chrome.
Crash IDs:
Crash ID: bp-0b4b5c20-7572-41ac-833a-a8e4a2130111
Crash ID: bp-2e8a62db-5e74-4379-b475-07dec2130111
Crash ID: bp-6ae86ee9-eb93-4d62-8a39-1a2f22111218
Crash ID: bp-6d92ea24-7fe3-4f7c-aaed-830cd2130111
Crash ID: bp-7a84c0ed-37d1-439b-a16b-69cbe2130111
Crash ID: bp-9f8795ac-044a-496d-aa76-009d32130111
Crash ID: bp-26d19016-0a72-4e08-a8d9-7fc392130111
Any help would be great.

You may have to try other malware scanning programs as well.
Do a malware check with some malware scanning programs on the Windows computer. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan.
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/security/scanner/en-us/default.aspx - Microsoft Safety Scanner
*http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
*http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
You can also do a check for a rootkit infection with TDSSKiller.
*http://support.kaspersky.com/viruses/solutions?qid=208280684
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

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Firefox crashes before it opens

When I try to run Firefox I get a screen saying that it has crashed. Firefox won't open at all. I installed the newest version because I thought it might be a problem with the older version I was running but I still received the same crash notification and Firefox still won't open.

Sounds that you may have caught some malware (efcaby.dll and effeef.dll).
Do a malware check with some malware scanning programs on the Windows computer. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan. 
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/security/scanner/en-us/default.aspx - Microsoft Safety Scanner
*http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
*http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
*http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Firefox crashes before even opening

Whenever I go to open Firefox, a "Mozilla Crash Reporter" appears. The only two options available to me from there are to close the window, restart Firefox, or quit Firefox. If I "restart Firefox," the window just pops up again. If I quit, the window merely closes. I tried restarting my computer. I tried uninstalling and reinstalling Firefox. I'm not especially computer savvy and don't know where to go from here.
Thank you for your help!

That is a problem with the lvprcinj01.dll file that is part of the Logitech QuickCam software.
*https://crash-stats.mozilla.com/report/index/d170951e-bc93-41cc-930d-add4a2121023
*http://www.liutilities.com/products/wintaskspro/dlllibrary/lvprcinj01/

Firefox 3.6.6 for Mac 10.4.11 crashes before it opens

I updated my firefox to the latest 3.6.6. Unfortunately, it crashes before it opens. Why? It would not even give me a crash ID number because it never opens at all. The older version of firefox works though.
== Crash ID(s) ==
00000

Hello.
Hopefully this support article is what you need:
https://support.mozilla.com/en-US/kb/Firefox+will+not+start
In any case, it's possible that you are having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?
Whenever you have a problem with Firefox, whatever it is, you should make sure it's not caused by one (or more than one) of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] (don't forget to select ''Disable all add-ons'' when you start safe mode). If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes this article] for information about troubleshooting extensions and themes and [https://support.mozilla.com/en-US/kb/Troubleshooting+plugins this one] for plugins.
If you need support for one of your add-ons, you'll have to contact its author.
If the problem is not disappears when all add-ons are disabled, please tell me, so we can work from there.

Firefox crashes before startup

Firefox crashes before startup. I can't open it long enough to get to safe mode. I have uninstalled and reinstalled four times, three of which were after a reboot. I'm running Windows 7, 32 bit. Crash IDs:
bp-e7279bca-af60-4511-97d8-8ac6e2141211
bp-28c95e65-0481-4501-9b85-170152141211
bp-98fab328-69b9-47cc-ac4c-afeb32141211
bp-0447c2fc-f0df-4b6b-926f-f7ddb2141211
bp-ca40873c-5060-4a7d-9398-6a56c2141211
bp-1eef7770-e609-44fa-ad1d-5dae82141211
bp-c9641eef-7652-4d17-a870-010b42141211
bp-b05d1737-8c5b-435e-8e23-7a37e2141211
bp-6e5c80eb-b737-40d2-922e-100622141211

hello trempls, thanks for posting with your crash report ids! they show that these crashes are caused by malware (datamangr.dll) on the system, so please run a scan with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes], [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner] & [http://www.microsoft.com/security/scanner/default.aspx microsoft safety scanner].
[[Troubleshoot Firefox issues caused by malware]]

Firefox crashes when you open it

Firefox will not do anything, except crash.

See if this article helps - [[Firefox crashes when you open it]]

Why does Firefox crash when I open Adobe, Firefox & all plug ins including Adobe are up to date and current, WHY?

Firefox crashes when I open Adobe (pdf) ALL plug ins are up to date as is FF

This is a known issue with Adobe Reader, and it depends on Adobe updating their plugin.
Whilst you're waiting for Adobe to fix their plugin, you can disable it and fallback to the default PDF reader in Firefox by following these steps:
#Go to ''Tools'' > ''Options'' (or ''Firefox'' > ''Options'').
#In the Options window, select the ''Applications'' tab.
#In the ''Search'' field, type ''PDF''. You should find ''Portable Document Format (PDF)''.
#On the right handside you should find an ''Action'' column. In order to view PDF files in Firefox, choose ''Preview in Firefox''.
Did this fix your problems? Please report back to us!
Thank you.

FireFox crashes immediately without opening on several users PCs since last week, how do I resolve?

Hi
we have several users using Firefox (varies from v15 to v19) in Windows XP SP3, who have started experiencing Firefox crashes before the app actually starts. Here are a selection of crash IDs:
bp-02dd0e2b-fc51-42e6-94d3-e54a62130320
bp-6a57380e-6fc4-467d-9c4a-f95c52130320
bp-6675d337-0d25-4263-afed-4ba5e2130320
bp-a64a4507-d3e1-44a1-8958-5025e2130320
I've tried uninstalling (including manually deleting the user profile), restarting and reinstalling. The crash occurs no mater who's logged in and in safe mode as well.
Any ideas?

Check for malware also.
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for 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/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
[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.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

Light Room crashing before it opens

Every time I try and launch LR5 it crashes before opening. This just started happening this week. Both PS and Br are working fine. I am on a Dell machine running Windows 8.1 and have 16gb ram. Any ideas how to cure this issue?
Thanks
gene

Further information; When LR starts to open it looks like thee is an error message---it doesn't stay long enough for me to read it completely but I think it is saying something about a problem with the preview cache but it closes before I can tell for sure. My going to the lrcat folder and working backwards I have been able to get LR to open and am now reimporting my 2014 images (luckily we are only a couple months into the year) and will see if that works.
Jim Wilde <[email protected]> wrote:
Jim Wilde http://forums.adobe.com/people/Jim+Wilde created the discussion
"Re: Light Room crashing before it opens"
To view the discussion, visit: http://forums.adobe.com/message/6117681#6117681

Firefox crashes before it can be open, just started today and have no idea how to fix it.

I was using Firefox when it first crashed, now when I try to restart it the Motzilla Crash Reporter window opens. I have no idea how to fix this. I tried to follow directions on-line (I'm not very computer savvy) but my signature/ID what ever is c27da8ef-4370-4963-9c18-cb5d52100726
== Crash ID(s) ==
c27da8ef-4370-4963-9c18-cb5d52100726
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; InfoPath.2; .NET4.0C; .NET CLR 1.1.4322)

Run Software Update. Install all the recommended updates. Read: http://support.apple.com/kb/HT5244

I changed Java settings and now Firefox crashes as it opens, even in safe mode; how can I fix this?

I was trying to change settings to access the comments section of Slate.com. Right or wrong, I changed a Java setting from -1 to 2. The setting was in about:config and I believe it involved some sort of max. As I cannot open anything, I am not sure.
When I made the change, firefox crashed immediately, Every time I have tried to reopen, even in safe mode, it immediately crashes again and will not reopen.

Hi pternagy,
Sorry you are having problems.
For future reference. Those of us that mess directly with about:config soon learn how to recover from mistakes and what it is sensible to backup. Occasionally backing up your entire profile for instance can be useful and would have probably given you a quick solution of copying over the file from that backup.
*[[Back up and restore information in Firefox profiles]]
Ok on to the subject of trying to get Firefox back as it was:
Find your profile and the file ''prefs.js'' and rename that. (The renamed file is a potentially useful backup.) Firefox is then forced to regenerate the file and will reset your preferences to the default. You can then re open and use Firefox. Next try to get it back to normal.
Trying to manually edit the file ''prefs.js'' is normally a bad idea. However if it is a single pref change it may be possible to directly edit the prefs.js file (whilst Firefox is closed) to get everything back to how it was before . You have the renamed file to work with. Probably best to test all this out in a new additional profile then you only break additional test profiles not working profiles essential to Firefox.
These articles should help you:
* http://kb.mozillazine.org/Prefs.js_file
* [[Reset Firefox preferences to troubleshoot and fix problems#w_solution-2-delete-firefox-preference-files]]_solution-2-delete-firefox-preference-files
*[[Profiles - Where Firefox stores your bookmarks, passwords and other user data#w_finding-your-profile-without-opening-firefox]]#w_finding-your-profile-without-opening-firefox
* http://kb.mozillazine.org/Using_multiple_profiles_-_Firefox
Please post back with how you get on and whether you need any extra help.
Good Luck.

Firefox crashes before it starts

since 01/01/2012, i can´t use firefox anymore because it crashes before i can open it. everything i see is a pop-up window which says that I can report it to you.
i already tried everything which is written on your support page (trying to open it in safe mode e.g.), but it still crashes then.
my antivirus programme told me, there was a file with kind of a virus the day, when firefox crashed for the first time

Firefox 7.0.1 Crash Report [@ js::Bindings::getLocalNameArray(JSContext*, js::Vector<JSAtom*, int, js::TempAllocPolicy>*) ]
* https://crash-stats.mozilla.com/report/index/2f7a02f0-334b-47ea-85bc-6403f2120103
This crash is fixed on Firefox 9, please upgrade your browser to Firefox 9 and check
* getfirefox.com

Firefox crashes immediately upon opening

I have attempted launching FireFox in "Safe Mode" though it still crashes/will not open in.
Before this it would not open at all, no crash report's, no nothing. Then I reset my computer to a prevous update version. And now it gives me a crash report.
(I have attempted uninstalling and reinstalling FireFox and it still will not open, and I am no longer getting crash reports)

Hi,
You can try to clean install a fresh copy after uninstalling the present version via Windows Control Panel '''Programs and Features'''. While uninstalling make sure to choose deleting the preferences and folders. Please also see [https://support.mozilla.org/en-US/questions/916668#answer-305338 this] regarding problems with security software.
To backup important info which can be restored later, please see [https://support.mozilla.org/en-US/kb/Backing%20up%20your%20information?s=backup&r=1&e=sph&as=s this.] Some of the important files could be '''places.sqlite''' which holds the bookmarks and history, '''key3.db''' + '''signons.sqlite''' which are needed to restore the saved passwords etc.
[http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder & Files]
[https://www.mozilla.org/en-US/firefox/new/ Firefox Latest]

I have to access this location on Exploer becuase Firefox crashes everytime I open it. What do I do to use Firefox?

Yesterday Firefox started crashing and I could not open Firefox. It is still doing that today.
I had to use Explorer to open this site.
What is wrong with Firefox? Why does it only crash and not open?

* Such details are stored in a cookie.
* You must allow that cookie (Tools > Options > Privacy > Cookies: Exceptions)
* Make sure that you do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences"
See also [[Enabling and disabling cookies]] and http://kb.mozillazine.org/Cookies

Firefox crashes when closing open windows

Hi
Since updating to the new Firefox 18.0.1 every time I try to close a few open windows Firefox crashes. I would be reading my mail and after having about 10 open windows I go and check on the X to close the windows. I can close about five to seven of them with no problem but when I have about three of them left Firefox crashes. It is very annoying. I used the Firefox Safe Mode feature and this problem does not happen while in Safe Mode. I don't know what the next step is to fix this problem. Could you please help. Thank you

Hello,
Thanks for responding back. Norton is to release an update shortly to fix this crashing issue.
Have a nice day!

Firefox crashing before it opens

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