We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo

Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.

Updated to 45,died,removed,installer extracts,quits.Killed ASC,immunet,MB.Tried Safe Mode. Now what?

  • 14 antwurd
  • 1 hat dit probleem
  • 4 werjeftes
  • Lêste antwurd fan cor-el

more options

Dell Optiplex 745 3.4ghz, 5G,250G W10 FF updated to 45, will not start. Removed it, installers fail. Offline installer extracts and quits. Tried safe mode. Tried shutting down AV & malware protection. Shut down firewall. Nothing works. Now what? I need FF to access my passwords!!! Using Chrome, which stinks! Edge will not work in SM, I am using Tweaking.com windows repair. I hater exploder and chrome is now worse than useless.

Dell Optiplex 745 3.4ghz, 5G,250G W10 FF updated to 45, will not start. Removed it, installers fail. Offline installer extracts and quits. Tried safe mode. Tried shutting down AV & malware protection. Shut down firewall. Nothing works. Now what? I need FF to access my passwords!!! Using Chrome, which stinks! Edge will not work in SM, I am using Tweaking.com windows repair. I hater exploder and chrome is now worse than useless.

Keazen oplossing

Do a malware check with several malware scanning programs on the Windows computer.

Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

You can also do a check for a rootkit infection with TDSSKiller.

See also:

Dit antwurd yn kontekst lêze 👍 0

Alle antwurden (14)

more options

The files key3.db & logins.json in the profile are required to recover passwords, and the bookmarks stored in the bookmarkbackups folder have the bookmarks stored, as does places.sqlite. If you save these files, then make a new profile, you should be able to put those files into it and perhaps that will fix the problem.

more options

Install an older version of Firefox {web link} See if this installs properly.

more options

Standard installers choke in download. Offline installers tried: 45 32 bit

                                        45 64 bit {W10 64 dual core}
                                        38 32 bit

All quit after extracting. All AV & AM shut off. All possible fixes in ASC9 & Tweaking.com Windows Repair. Clean scan with malwarebytes.

more options

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

more options

cor-el said

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

Safe mode makes no difference in installer behavior. Failure with every case and combination.

more options

Do a clean reinstall of the current Firefox release and delete the Firefox program folder before installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows Registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then create a new profile to test if your current profile is causing the problem.


more options

I found and deleted the partial firefox folder. Made a fresh download of the installer which extracted and quit just as it always does.

I was able to access my external hd which had ver. 40. It updated to 43, which continues to work. I still want to get a fresh install on the internal disk.

more options

FredMcD said

Install an older version of Firefox {web link} See if this installs properly.

No, other versions also fail to install.

more options

any version: installer extracts and quits without a trace.

more options

It's possible the problem is your protection programs. As a test, disable them.

more options

FredMcD said

It's possible the problem is your protection programs. As a test, disable them.

Shut down all AV and AM plus maintenance/repair programs. Also shut down firewall. No change.

more options

Do a clean reinstall of the current Firefox release and delete the Firefox program folder before installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows Registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then create a new profile to test if your current profile is causing the problem.



Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

more options

Tried and denied. No Firefox installer will run, windows or Safe Mode! Chrome update also fails

more options

Keazen oplossing

Do a malware check with several malware scanning programs on the Windows computer.

Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

You can also do a check for a rootkit infection with TDSSKiller.

See also: