Dear John 99, FF also crashes when started in FF SAFE MODE

Yes, but did you also disable all plugins including FlashPlayer and can you let us have some of the Crash IDs that it generates. Or a screenshot of any error messages.

Your other problems are sometimes Flash Hangs that should not happen with Flash Player disabled.

Please leave Firefox ten minutes before forcing it to quit. In that time it would normally generate a crash report. (If you have a light indicating disk activity and think Firefox is still working away in the background leave it even longer )

And a longshot, if you have set Firefox to clear History on close down change that back to the default of not clearing History, because at the moment automatically clearing History may cause problems on Firefox 44.

FF generates no crash IDs, no error messages. Nothing at all, It just shuts down itself. Every add on nad every plugin manually deactivated. Only in Windows Safe Mode is FF stable!!!

Have a look at your Windows event logs I will not understand those but maybe someone else will.

• http://windows.microsoft.com/en-gb/windows/open-event-viewer#1TC=windows-7
• http://www.dummies.com/how-to/content/how-to-use-event-viewer-in-windows-10.html

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

• https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

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.

• Malwarebytes' Anti-Malware:
  http://www.malwarebytes.org/mbam.php
• AdwCleaner:
  http://www.bleepingcomputer.com/download/adwcleaner/
  http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
• SuperAntispyware:
  http://www.superantispyware.com/
• Microsoft Safety Scanner:
  http://www.microsoft.com/security/scanner/en-us/default.aspx
• Windows Defender:
  http://windows.microsoft.com/en-us/windows/using-defender
• Spybot Search & Destroy:
  http://www.safer-networking.org/en/index.html
• Kasperky Free Security Scan:
  http://www.kaspersky.com/security-scan

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

• Anti-rootkit utility TDSSKiller:
  http://support.kaspersky.com/5350?el=88446

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Thanks! Scanning with malware program really helped. I used this http://example.com http://www.malwarebytes.org/mbam.php and found after scanning the infections. deleted and know everything is OK. Also i want to thank everyone who posted here! Efcharisto (greek for thank you) guys!

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

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