Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options) key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh).

Is the problem still there?

While still in Safe Mode,

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most resent 7 - 10 crash reports, and copy them. Now go to the reply box below and paste them in.

FredMcD,

Reports without BP in front or with BP in front? Examples show BP...

Trying to get confirmation on line. Thank you.

Okay - making progress.

I started in SM and clicked open the link. I got further than I ever got before, which was that the page opened and I got through a few questions. As it loads slowly, I wandered back to this page (to tell you what happened) and the blue screen appeared, as usual.

There is nothing in Crash Reports newer than December 15th. Even though I can't imagine that they are, I'm not a tech; can you use these anyway?

Thank you.

I've called the big guys to help you. Good luck.

Was the blue screen the computer, or Firefox?

Blue screens are on my computer. I didn't realize it could happen elsewhere, like on a FF server.

Meanwhile - were your instructions meant to say with or without BP? Let's teach everybody who comes after us properly.

Thank you for your help,

FredMcD said

Note: If any reports do not have BP in front of the numbers/letters, click it to submit them.

FredMcD,

I learned something today that has taken five days. There is a conflict between Firefox and Windows.

 After doing as you suggested  - I then decided to try to access email from IE.  A couple of websites which would have shut down with a Blue Screen Error a long time ago, allowed me to do whatever I went on to do, without incident.  I don't know with certainty about much, but if I can open emails in Explorer, but not Outlook via Firefox, something is wrong.
 Other symptom - when I had to restart because of BSOD, I lost Password Editor and all files within.  Because of FEBE, I restored it in less than three seconds.  It's awesome and a life saver, and everybody should have it!

I can't wait to talk to the Dudes Upstairs. This is awful. - at least you know where we started. Thank you

I am using Win 7, and never had a bad problem.

Here is another option for you; Windows Live Mail is part of Windows Live Essentials

When using Win7, I never had anything quite this bad. Since being "made" to upgrade to 10, I've had previously unseen before issues. I think it's the worst OS - worse than Vista.

You do know that support has ended and - as a I use computer for business, a current OS is necessary for support.

Live mail is outlook.com. Thank you.

I think you can go back to Win 7. https://support.microsoft.com

I am looking to solve the issues of 10, not delay them. Thank you, though.

Does your system have dual Intel/Nvidia graphics? In that case, check out these threads:

• Solved Kernel Security Check Failure randomly since updating to Win10 - Windows 10 Forums - remove/reinstall Nvidia drivers

• Solved BSOD Kernel Security Check Failure consistently caused by Photoshop... - Windows 10 Forums - set crashing application to run on integrated Intel GPU instead of Nvidia GPU (Photoshop in that case; see post toward the bottom of the page with screenshots of how to do it)

If not, folks on that site can read crash dumps: http://www.tenforums.com/bsod-crashes-debugging/2198-bsod-posting-instructions.html

I suggest making a full backup before implementing any removal/uninstallation suggestions.

Hit the wrong link. This has NOT BEEN solved.

The reason I came to you is because it's not an issue that has been resolved, yet.

It's not NVIDIA and it's not PHOTOSHOP. It's something previously not studied and remains a question. It's not drivers. Sfc/Scannow didn't find and fix (or find and not fix) errors. Powershell didn't lead to a definitive reason.

A Microsoft engineer or engineer's assistant (or forum gatherer of info to pass on to real problem solvers) ran my reports and suggested that I reinstall Firefox. That was the only uninstall suggested as of last night. I haven't tried the people at that Windows forum, but I did use their tool. A forum was created by the MS engineer who oversees cumulative updates - and that is where I've been spinning my wheels for 19 days.

"No, sorry, I can't help you" would have been a warmly accepted answer, also. You pros have a broader idea of the issues people face and it was conceivable that you could fix this.

Thank you.

Okay, here's a good thing to try next, it's a combination of two actions:

(1) Create a new Firefox profile, and (2) Refresh your Firefox program files.

Create a new Firefox profile

A new profile will have your system-installed plugins (e.g., Flash) and extensions (e.g., security suite toolbars), but no themes, other extensions, or other customizations. It also should have completely fresh settings databases and a fresh cache folder.

Exit Firefox and start up in the Profile Manager using either the Windows "Run" dialog or the system search box: type or paste the following and press Enter:

firefox.exe -P

Firefox's profile manager should open. Don't delete anything here! Any time you want to switch profiles, exit Firefox and return to this dialog.

Click the Create Profile button, assign a name like June2016, and skip the option to relocate the profile folder. After creating the profile, select it and start Firefox in that profile.

The profile won't have your data but should operate normally. Once you confirm that it works, we're ready for the next step.

Note: When returning to the Profile Manager later to test with your real profile, you might be tempted to use the Delete Profile button. But... it's a bit too easy to accidentally delete your real profile, so I recommend resisting the temptation. If you do want to clean up later, I suggest making a backup of all your profiles first in case something were to go wrong.

Clean Reinstall

We use this name, but it's not about removing your settings, it's about making sure the program files are clean (no inconsistent or alien code files). As described below, this process does not disturb your existing settings. Do NOT uninstall Firefox, that's not needed.

(A) Download a fresh installer for Firefox 46.0.1 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.) For maximum plugin compatibility, choose the 32-bit version.

(B) Exit out of Firefox (if applicable).

(C) Rename the program folder as follows (usually only one of these is applicable to your system):

32-bit install on 64-bit Windows

C:\Program Files (x86)\Mozilla Firefox

to

C:\Program Files (x86)\OldFirefox

All other installations

C:\Program Files\Mozilla Firefox

to

C:\Program Files\OldFirefox

(D) Run the installer you downloaded in step (A). It should automatically connect to your existing settings.

Note: Some plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders:

• \OldFirefox\Plugins
• \OldFirefox\browser\plugins

Hopefully that will resolve any issues with corrupt files that might have been missed in previous uninstall/reinstall cycles.

Can you run Firefox for a while with the new profile and fresh program files and test whether it still has a BSOD issue?

jscher2000,

I can't wait to try this (kidding). Do you know if this password extension is saved? Other than ABP, it's the only thing I need.

People always think it's a different program, which is why I took the screenshot.

Thank you.

Looking at the description of that extension, it seems to work with Firefox's built-in password store. To move your existing saved passwords to a new profile, you'll need to copy over two files from your real profile to the test profile, logins.json and key3.db (see also: Recovering important data from an old profile), and also install the extension to the new profile.

To protect against accidentally copying in the wrong direction and losing everything, I suggest backing up your real profile first. This article has tips on that: Back up and restore information in Firefox profiles.

jscher2000,

Very interesting - and a little disturbing. I haven't even tested anything, but I transferred each of my old FF files into my new profile, which seems to have worked flawlessly. I did everything you said.

When I opened Firefox the first time, I got two numbered defaults and none were named June2016 - your suggestion. I opened the thumb drive which had my old files and chose the default number that IT WAS NOT as my renamed June2016 profile. That was a momentary panic, since I created the new profile per your instructions.

 The strange thing is when I opened my email, your newer emails aren't in there.  They aren't deleted so outlook.com is a couple of hours behind.  My clock is accurate.

I don't know why I had to manually enter each file - I didn't see that the method of transfer based on names (Old and New Firefox) was going to work, so I manually pasted each file.  It's probably my lack of experience and confidence, but it was utterly relaxing.

Thank you for your help. This is the only thing that I'm counting on to overcome my issues because earlier - after I "spoke" with you, MS bowed out, telling me it was a FF issue. I dispute part of that, but I know there were issues. Maybe even my "Firefox not responding" messages will stop on my fourth install in 30 days. I'll let you know how happy I am.

I'll test for the (lack of) BSOD now.

Thank you!

jscher2000,

I had two BSODs back to back.

As the alternate (before I attempted this) or additional solution, I could refresh Windows, but if that solves the problem how was this not a Microsoft problem?

Very disappointed -

Thank you.

Hmm, I don't understand the part about the profile name. Usually if you create a new profile and start up in that profile once, it becomes your new default profile and Firefox doesn't ask you which one you want to use until you exit out of Firefox and start the profile manager again.

Anyway, I'm not sure if we learned anything yet because it sounds as though the BSODs occurred in a profile that was partially customized with some old settings files instead of a fresh clean profile as I had intended.