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 recent 7 - 10 Submitted crash reports, and copy them. Now go to the reply box and paste them in.

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

hi, the symptoms sound very similar to https://bugzilla.mozilla.org/show_bug.cgi?id=1590430 - did you ever use comdo security products in the past or even if not, could you check if there's a file called IseGuard64.dll, IseGuard32.dll or similar located under C:\Windows\system32\ or your system drive and if so, delete that file?

There is no IseGuard of any form. Thank you for trying to help.

There are no crash reports - all folders were deleted in previous attempts to correct.  ??

Is there any useful information in the Windows Event log about these crashes ?

Since Dec 3 (read from bottom - ascending order)

2 time listed WLAN extensibility Module Failed to start - Rtlihvs.dll - error 126

and 2 times ambkmafd failed to load

and 1 x RealTek Pcle GBE Family controller disconnected from network

and 1 x WLAN autoconfig service has successfully stopped

cor-el said

Is there any useful information in the Windows Event log about these crashes ?

see above list - thank you!

STILL NOT WORKING

OK, I just downloaded an earlier version of FF. It restored to what I expected, synced with other stuff, retrieved all the bookmarks etc. Working fine. then I closed the browser and tried to open it again and NOPE NADA .

Log Name: Application Source: Application Error Date: 12/6/2019 7:25:51 PM Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: Dee-OfficeDell Description: Faulting application name: firefox.exe, version: 71.0.0.7275, time stamp: 0x5de4f320 Faulting module name: firefox.exe, version: 71.0.0.7275, time stamp: 0x5de4f320 Exception code: 0xc0000005 Fault offset: 0x0000000000011579 Faulting process id: 0x2370 Faulting application start time: 0x01d5ac94e17e978b Faulting application path: C:\Program Files\Mozilla Firefox\firefox.exe Faulting module path: C:\Program Files\Mozilla Firefox\firefox.exe Report Id: 1f5abdf0-1888-11ea-b7ad-b083fe4cb2e6 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">

 <System>
   <Provider Name="Application Error" />
   <EventID Qualifiers="0">1000</EventID>
   <Level>2</Level>
   <Task>100</Task>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2019-12-07T00:25:51.000000000Z" />
   <EventRecordID>78563</EventRecordID>
   <Channel>Application</Channel>
   <Computer>Dee-OfficeDell</Computer>
   <Security />
 </System>
 <EventData>
   <Data>firefox.exe</Data>
   <Data>71.0.0.7275</Data>
   <Data>5de4f320</Data>
   <Data>firefox.exe</Data>
   <Data>71.0.0.7275</Data>
   <Data>5de4f320</Data>
   <Data>c0000005</Data>
   <Data>0000000000011579</Data>
   <Data>2370</Data>
   <Data>01d5ac94e17e978b</Data>
   <Data>C:\Program Files\Mozilla Firefox\firefox.exe</Data>
   <Data>C:\Program Files\Mozilla Firefox\firefox.exe</Data>
   <Data>1f5abdf0-1888-11ea-b7ad-b083fe4cb2e6</Data>
 </EventData>

</Event>

Deeeee said

STILL NOT WORKING OK, I just downloaded an earlier version of FF. It restored to what I expected, synced with other stuff, retrieved all the bookmarks etc. Working fine. then I closed the browser and tried to open it again and NOPE NADA . Log Name: Application Source: Application Error Date: 12/6/2019 7:25:51 PM Event ID: 1000 Task Category: (100) Level: Error Keywords: Classic User: N/A Computer: Dee-OfficeDell Description: Faulting application name: firefox.exe, version: 71.0.0.7275, time stamp: 0x5de4f320 Faulting module name: firefox.exe, version: 71.0.0.7275, time stamp: 0x5de4f320 Exception code: 0xc0000005 Fault offset: 0x0000000000011579 Faulting process id: 0x2370 Faulting application start time: 0x01d5ac94e17e978b Faulting application path: C:\Program Files\Mozilla Firefox\firefox.exe Faulting module path: C:\Program Files\Mozilla Firefox\firefox.exe Report Id: 1f5abdf0-1888-11ea-b7ad-b083fe4cb2e6 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Application Error" /> <EventID Qualifiers="0">1000</EventID> <Level>2</Level> <Task>100</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2019-12-07T00:25:51.000000000Z" /> <EventRecordID>78563</EventRecordID> <Channel>Application</Channel> <Computer>Dee-OfficeDell</Computer> <Security /> </System> <EventData> <Data>firefox.exe</Data> <Data>71.0.0.7275</Data> <Data>5de4f320</Data> <Data>firefox.exe</Data> <Data>71.0.0.7275</Data> <Data>5de4f320</Data> <Data>c0000005</Data> <Data>0000000000011579</Data> <Data>2370</Data> <Data>01d5ac94e17e978b</Data> <Data>C:\Program Files\Mozilla Firefox\firefox.exe</Data> <Data>C:\Program Files\Mozilla Firefox\firefox.exe</Data> <Data>1f5abdf0-1888-11ea-b7ad-b083fe4cb2e6</Data> </EventData> </Event>

Download the relevent 32 or 64 bit release of the previous version from the links underneath, select as per your language

32 bit at https://ftp.mozilla.org/pub/firefox/releases/70.0.1/win32/ 64 bit at https://ftp.mozilla.org/pub/firefox/releases/70.0.1/win64/

Should work fine, once installed go options disable automatic firefox updates for time being.

Hope it helps

Ok now how do I maintain the security without the updates? I tried to download the ESR version, but the PDF file would only open for about 20 seconds and then closed itself. Wasn't sure if I should continue with installation without instructions, LOL - mu luck on this stuff isn't great.

Extended Support Release is a great idea. 68.3.0esr would be the latest release. With the crashing, i would uninstall any other versions before installing a new one, but otherwise, there is nothing special about installing it:

https://ftp.mozilla.org/pub/firefox/releases/68.3.0esr/

If you really need the PDF, try to download manually and use various PDF readers to read it.

How in the world do I begin to install this ? Please be specific as I am no techie.

Index of /pub/firefox/releases/68.3.0esr/ Type Name Size Last Modified Dir .. Dir jsshell/ Dir linux-i686/ Dir linux-x86_64/ Dir mac/ Dir snap/ Dir source/ Dir update/ Dir win32/ Dir win64-aarch64/ Dir win64/ File KEY 20K 02-Dec-2019 12:07 File SHA256SUMMARY 4M 02-Dec-2019 12:07 File SHA256SUMS 529K 02-Dec-2019 12:07 File SHA256SUMS.asc 833 02-Dec-2019 12:07 File SHA512SUMMARY 7M 02-Dec-2019 12:07 File SHA512SUMS 820K 02-Dec-2019 12:07 File SHA512SUMS.asc 833 02-Dec-2019 12:07rjt69 said

Extended Support Release is a great idea. 68.3.0esr would be the latest release. With the crashing, i would uninstall any other versions before installing a new one, but otherwise, there is nothing special about installing it: https://ftp.mozilla.org/pub/firefox/releases/68.3.0esr/ If you really need the PDF, try to download manually and use various PDF readers to read it.

Assuming you are running a 64bit version of Windows for the United States, navigate to the download by clicking:

Navigate there manually starting here: [https://ftp.mozilla.org/pub/firefox/r.../68.3.0esr/] then clicking "win64/" "en-US/" and then "Firefox Setup 68.3.0esr.exe"

You will need to logon as an administrator of the machine to successfully run the installation.

Or simply click on the following link: [https://ftp.mozilla.org/pub/firefox/r.../Firefox%20Setup%2068.3.0esr.exe] https://ftp.mozilla.org/pub/firefox/releases/68.3.0esr/win64/en-US/Firefox%20Setup%2068.3.0esr.exe