After A Firefox update, Firefox willl only open in Windows Safe Mode

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  1. Posts : 8
    Windows 10 Pro
       #1

    After A Firefox update, Firefox willl only open in Windows Safe Mode


    Windows version 1909, build 18363.720

    Since upgrading from W7 to W10 in January 2020, every time FF has an upgrade it refuses to open in Windows normal mode. The first attempt I believe was FF72 to FF73, then to 74, and now 74.01. Clicking on the FF icon causes the activity circle to spin for a fraction of a second and then nothing happens. Nothing in Task Manager. Can't open the profile manager, or FF safe mode.

    I ended at least one time just uninstalling and reinstalling FF. That is a pain to deal with, creating a new profile and all that goes with it.

    This time, just for the heck of it, I put Windows in Safe Mode, and FF opens just fine. It's got the right profile, everything works. All I did was a simple upgrade from 74 to 74.01. This was the first time I thought to try Windows safe mode.

    I have Malwarebytes 4.1, SuperAntiSpyware (realtime protection turned off), Acronis 2020 (ransomware protection turned off). And of course Windows Bitdefender and firewall. I have added exclusions to MWB and the firewall, at least I hope I did it the right way.

    I have no other ideas on what could be blocking FF.

    Any out of the box ideas are welcome at this point.

    Joe
      My Computer

  2. Caledon Ken's Avatar
    Posts : 24,460
    Windows 10 Pro x64 Version 2004
       #2

    Welcome to TenForums @heckydog

    I would either uninstall Malwarebytes and SAS (not disable)

    or I would use the clean boot process to identify the potential third party software blocking FF.

    Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts


    Sound like you know exactly what is installed on device but I would check if any of AV / privacy tool has slipped onto your machine.



    Ken
      My Computer

  3. f14tomcat's Avatar
    Posts : 53,665
    Multi-boot Windows 10 - RTM, RP, Beta, and Insider
       #3

    If Firefox is crashing, there will be an entry in Reliability History with some more details.

    Just press the WIN key and start typing RELI...... it's at the top.

    After A Firefox update, Firefox willl only open in Windows Safe Mode-2020-04-08_10h20_18.png
      My Computers

  4. Berton's Avatar
    Posts : 10,760
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909
       #4

    A note about installing: since Safe Mode does not activate all drivers some programs installing while running in Safe Mode will not know about features they need for full operation, best to get the computer back into full/standard mode before installing new programs.
      My Computers

  5. Porthos's Avatar
    Posts : 882
    Win 10
       #5

    I have added exclusions to MWB and the firewall, at least I hope I did it the right way.
    Please add the items listed in this support article to Your AV 's allow list(s)/trust list(s)/exclusion list(s) particularly for any of its real-time protection components and likewise add Your AV 's program folder(s) (likely located under C:\Program Files and/or C:\Program Files (x86)) to Malwarebytes' Allow List using the method described under the Allow a file or folder section of this support article and do the same for its primary data folder which is likely located under C:\ProgramData (you may need to show hidden files and folders to see it).
      My Computers


  6. Posts : 8
    Windows 10 Pro
    Thread Starter
       #6

    I checked the reliability function. There were 2 entries for FF, both dated this morning at the same time. Also, at the same time as these FF entries there was an entry for a MS Security Intelligence Update , KB2267602. Probably a coincidence but thought I should note it.

    FIRST ENTRY:
    Source
    Firefox

    Summary
    Stopped working

    Date
    ‎4/‎8/‎2020 7:31 AM

    Status
    Report sent

    Description
    Faulting Application Path: C:\Program Files\Mozilla Firefox\firefox.exe

    Problem signature
    Problem Event Name: BEX64
    Application Name: firefox.exe
    Application Version: 74.0.1.7398
    Application Timestamp: 5e8706eb
    Fault Module Name: StackHash_0000
    Fault Module Version: 0.0.0.0
    Fault Module Timestamp: 00000000
    Exception Offset: PCH_84
    Exception Code: c0000005
    Exception Data: 0000000000000008
    OS Version: 10.0.18363.2.0.0.256.48
    Locale ID: 1033
    Additional Information 1: 0000
    Additional Information 2: 00000000000000000000000000000000
    Additional Information 3: 0000
    Additional Information 4: 00000000000000000000000000000000

    Extra information about the problem
    Bucket ID: 9bb8649466917ce96fbe26cfeb48c254 (2287308335198290516)


    SECOND ENTRY:
    Source
    Firefox

    Summary
    Stopped working

    Date
    ‎4/‎8/‎2020 7:31 AM

    Status
    Report sent

    Description
    Faulting Application Path: C:\Program Files\Mozilla Firefox\firefox.exe

    Problem signature
    Problem Event Name: APPCRASH (the other entry said BEX64
    Application Name: firefox.exe
    Application Version: 74.0.1.7398
    Application Timestamp: 5e8706eb
    Fault Module Name: firefox.exe
    Fault Module Version: 74.0.1.7398
    Fault Module Timestamp: 5e8706eb
    Exception Code: c0000005
    Exception Offset: 00000000000127f9
    OS Version: 10.0.18363.2.0.0.256.48
    Locale ID: 1033
    Additional Information 1: 0000
    Additional Information 2: 00000000000000000000000000000000
    Additional Information 3: 0000
    Additional Information 4: 00000000000000000000000000000000

    Extra information about the problem
    Bucket ID: b0959ebd4db83e8bfd95a114287e1851 (2131787106580568145)

    - - - Updated - - -

    Caledon Ken said:
    Welcome to TenForums @heckydog

    I would either uninstall Malwarebytes and SAS (not disable)

    or I would use the clean boot process to identify the potential third party software blocking FF.

    Perform a Clean Boot in Windows 10 to Troubleshoot Software Conflicts


    Sound like you know exactly what is installed on device but I would check if any of AV / privacy tool has slipped onto your machine.


    Ken
    I will look into the clean boot process if needed. I've bookmarked the link. Wouldn't quitting MWB and SAS accomplish the same as uninstalling? I have lifetime subscriptions and fear it would be messy to reinstall those programs.
      My Computer

  7. Caledon Ken's Avatar
    Posts : 24,460
    Windows 10 Pro x64 Version 2004
       #7

    Then try clean boot.

    Hear you on de-installing but they should be quite straight forward.

    You de-activate both before uninstalling so the license is shown as not in use. Then re-install and add key.

    I also have both of those products, with licenses. I have not had issues but that is just my experience.

    This could be last resort.

    Uninstalling is not same as disabling. At least that has not been my experience especially when doing Win 7 to 10 upgrades.

    As Berton pointed out some programs can load drivers.

    Would look at what Porthos posted. Maybe a simple exclusion is key.
      My Computer

  8. Jacee's Avatar
    Posts : 1,597
    Win 10 home 20H2 19042.928
       #8

    Do you have an earlier restore point that you can get before this update happened? I would choose that over uninstalling MBam and SAS.

    An Access Violation is a type of Exception caused when an application Reads, Writes or Executes an invalid Memory Address.
    The Exception Code is 0xC0000005
      My Computers

  9. Callender's Avatar
    Posts : 4,184
    20H2 64 Bit Home
       #9

    Check your profiles.ini settings. Maybe something wrong there?

    After A Firefox update, Firefox willl only open in Windows Safe Mode-profiles-settings.jpg

    In any case upgrading Firefox to new versions can sometimes be problematic. To get around your reinstall/ create new profile problem - backup profile:

    https://www.softpedia.com/get/System...-Restore.shtml

    If you have any problem in future you can fully remove Firefox including profile and any remnants then reboot and install a fresh copy of Firefox.

    Then you can restore your backed up profile using the software linked above.
      My Computer


  10. Posts : 8
    Windows 10 Pro
    Thread Starter
       #10

    Callender said:
    Check your profiles.ini settings. Maybe something wrong there?

    After A Firefox update, Firefox willl only open in Windows Safe Mode-profiles-settings.jpg

    In any case upgrading Firefox to new versions can sometimes be problematic. To get around your reinstall/ create new profile problem - backup profile:

    https://www.softpedia.com/get/System...-Restore.shtml

    If you have any problem in future you can fully remove Firefox including profile and any remnants then reboot and install a fresh copy of Firefox.

    Then you can restore your backed up profile using the software linked above.
    My profiles.ini file has some subtle differences from your layout and I don't know if it makes a difference. Attached is a copy of mine. Perhaps you can spot something. I have copied a bunch of the files in from my current profile to a thumb drive. If push comes to shove I will have to uninstall/reinstall Firefox, but I'm trying to avoid the idea I would have to do that every single time there's an update.

    (I noticed that I have Default=1 on Profile 1, not Profile 0, could that be an issue?)
    Attached Thumbnails Attached Thumbnails After A Firefox update, Firefox willl only open in Windows Safe Mode-profiles.ini.jpg  
      My Computer


 
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