This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

KB2912390 from Microsoft crashes Firefox in Feb Patch Tuesday. It did not crash IE9.

ClassicRockfan
ClassicRockfan
more options

Would just send a crash report to Firefox. Would open in safe mode

SuperMicro C7P67 motherboard Windows 7 Professional 64 bit 16 gigs Crucial memory Nvidia GTX 570 video card 1.2 gig memory Two 1 gig WD Black hard drives

Would just send a crash report to Firefox. Would open in safe mode SuperMicro C7P67 motherboard Windows 7 Professional 64 bit 16 gigs Crucial memory Nvidia GTX 570 video card 1.2 gig memory Two 1 gig WD Black hard drives

All Replies (3)

philipp
philipp
  • Moderator
more options

We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

  1. Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field.
  2. In that text field, enter %APPDATA% and press Enter. An explorer window should open.
  3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
  4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
  5. Open the most recent 5 files with a text editor and copy the IDs.
  6. Paste each ID with bp- into the reply window on the forums.

Thanks in advance!

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected

See:

ClassicRockfan
ClassicRockfan Question owner
more options

Solved the problem. When Microsoft upgraged me to IE 10 which screwed up my computer, Microsoft installed KB 2670838. KB 2912390 updated this fix and caused Firefox to crash. When I uninstalled KB 2670838 and hid that update, the problem went away and I am back browsing in Mozilla's arms.