That's a strange issue, and I'm positive Firefox isn't locking your computer, because there is no way for Firefox to do that.

To find the correct solution to your problem, we require some more non-personal information from you. Please do the following:

• Click the menu button , click help and select Troubleshooting Information.

Now, a new tab containing your troubleshooting information should open.

• At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
• Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.

If you need further information about the Troubleshooting information page, please read the article Use the Troubleshooting Information page to help fix Firefox issues.

Thanks in advance for your help!

Application Basics

Name: Firefox Version: 29.0.1 User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 Firefox/29.0

Crash Reports for the Last 3 Days

All Crash Reports

Extensions

Important Modified Preferences

browser.cache.disk.capacity: 358400 browser.cache.disk.smart_size_cached_value: 358400 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.places.smartBookmarksVersion: 6 browser.sessionstore.upgradeBackup.latestBuildID: 20140506152807 browser.startup.homepage_override.buildID: 20140506152807 browser.startup.homepage_override.mstone: 29.0.1 extensions.lastAppVersion: 29.0.1 gfx.direct3d.last_used_feature_level_idx: 1 network.cookie.prefsMigrated: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateFx3Prefs: true

Graphics

Adapter Description: NVIDIA GeForce 8500 GT Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Adapter RAM: 512 Device ID: 0x0421 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.16571) Driver Date: 3-4-2014 Driver Version: 9.18.13.3523 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 10 Vendor ID: 0x10de WebGL Renderer: Google Inc. -- ANGLE (NVIDIA GeForce 8500 GT Direct3D9Ex vs_3_0 ps_3_0) windowLayerManagerRemote: false AzureCanvasBackend: direct2d AzureContentBackend: direct2d AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.10.3 Version in use: 4.10.3

NSS Expected minimum version: 3.16 Basic ECC Version in use: 3.16 Basic ECC

NSSSMIME Expected minimum version: 3.16 Basic ECC Version in use: 3.16 Basic ECC

NSSSSL Expected minimum version: 3.16 Basic ECC Version in use: 3.16 Basic ECC

NSSUTIL Expected minimum version: 3.16 Version in use: 3.16

Can you get to the crash reports and post them here?

We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste that into the "Post a Reply" box.

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

It just says "no crash reports submitted". But, when I opened Firefox, before I had the chance to type in about:crashes, my machine locked up. I was able to get the info on the second try. If I don't open Firefox, I can surf all over in IE 11 without any lock ups. Strange.

If you can't open Firefox, see:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter#Location_of_crash_reports
• http://kb.mozillazine.org/Mozilla_Crash_Reporter#Viewing_crash_reports

• https://developer.mozilla.org/How_to_get_a_stacktrace_for_a_bug_report

Don't have any problem opening Firefox. It just doesn't run very long before it locks up/freezes the computer. By the way, I loaded Windows on a brand new HD, did all the Windows updates and then downloaded Firefox. So there was no software on the HD except the OS. Then when I opened Firefox, within seconds my computer locked up.

So, I guess no more replies means I don't use Firefox anymore. Thanks Microsoft, for making me move from XP, where Firefox worked, to Windows 7 where I can't use Firefox. Maybe I should just buy a Mac.

Hi 2R15, Firefox hangs or is not responding - How to fix Where did you download Firefox from?

If the entire computer hangs then this is more likely a problem with other (security) software that is running or windows services and drivers.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

Is there anything in the Windows Event log about these hangs/crashes?

• http://windows.microsoft.com/en-us/windows/open-event-viewer

guigs2-I downloaded from Mozilla. Reading from the link you supplied, it doesn't sound like Firefox is hanging. Something else is causing the computer to freeze.

cor-el - I ran it in safe mode for ten minutes and not get the freeze up. I updated my BIOS thinking that might help (BIOS was dated 2009). It did make a difference:now it seems to surf OK but if I try to enlarge a window to fill the screen by clicking and dragging the edge of the window, it will freeze the computer every time in Firefox and sometimes in IE. BUT now, after a few seconds, the machine will reset itself. Before the BIOS update, I had to shut the machine off with the switch on the front of the case. After the BIOS update the computer couldn't find the video card. I restarted it again and then it found the card. I downloaded the latest drivers for the video card and installed them but it didn't help. The video card is an Nvidia GeForce 8500GT, about five years old. Could it be the problem?

I looked at the Event logs but I have no idea what they are saying. I did get a pop up window once that said:

Windows recovered from a serious shutdown Problem event name - Blue screen OS version - 6.1.7601.2.1.0.256.1 Locale ID - 1033 Then more information that I have no idea about.

I'm thinking that this problem isn't about Firefox??????

Microsoft Fix it Solution Center {web link}

Can you post your logs from Windows Event Viewer?

• http://windows.microsoft.com/en-us/windows/open-event-viewer#1TC=windows-7

Windows logs are known to be long so to avoid overfilling the text area (it's limited to a certain number of characters), can you copy/paste your log(s) into http://pastebin.mozilla.org/ then share the link?

Moses, the Event Viewer has a ton of information. Is there a particular section of it that you need? Or is there a way to send you the entire report without trying to copy all of it? I did get this popup window after the last crash/restart:

WINDOWS RECOVERED FROM A SERIOUS SHUTDOWN Problem signature:

 Problem Event Name:	BlueScreen
 OS Version:	6.1.7601.2.1.0.256.1
 Locale ID:	1033

Additional information about the problem:

 BCCode:	124
 BCP1:	0000000000000000
 BCP2:	FFFFFA80053A84B8
 BCP3:	0000000000000000
 BCP4:	0000000000000000
 OS Version:	6_1_7601
 Service Pack:	1_0
 Product:	256_1

Files that help describe the problem:

 C:\Windows\Minidump\060614-19827-01.dmp
 C:\Users\Rick\AppData\Local\Temp\WER-34601-0.sysdata.xml

Read our privacy statement online:

 http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:

 C:\Windows\system32\en-US\erofflps.txt

Are there reports that mention a specific file or component as the cause?

If that isn't the case then it is probably not possible to use these event reports.

Try to open C:\Windows\Minidump\060614-19827-01.dmp with a TEXT viewer, like Notepad. What does it look like?

Then do the same with C:\Users\Rick\AppData\Local\Temp\WER-34601-0.sysdata.xml

Guys, I think I fixed the problem! I replaced the 8500GT video card with an 8400GS card yesterday and downloaded their 337.88 drivers. So far, so good. No crashes/lockups/freezes. I appreciate all your help! I guess we can close this one.

That's good to hear. Great going.

Hello,

I am glad to hear that your problem has been resolved.

If you have not already, please mark this thread as solved by marking the solution.
This will help other users experiencing similar problems find help faster and more efficiently.

I hope you continue using our products and thank you for contacting Mozilla Support.