Firefox will not start after the upgrade to 27. Try each idea online for 4 hours. Nothing has worked. Downgraded to 26

I have the same problem that
https://support.Mozilla.org/he/questions/985552#question-reply
I tried everything I could find online. Uninstall and reinstall. tried even completely uninstall, leaving the data in my profile (I save him in chrome).
Nothing has worked. the firefox.exe process appears in the Manager of tasks for 3 seconds and disappeared.
Finally I downgrade to FF26 - an unofficial version on the web and not my locale.
You must provide an option to download the old versions.
V27 is too faulty. I'm sorry.
I'm still using Win XP sp3.

You said that Kaspersky FF files are and works very well. What is the latest
update you Kaspersky? Have you scanned for malware? Use several of
the programs listed below.

======================================

Sometimes a problem with Firefox can be a result of malware installed on your computer, you may not be aware of.

You can try these free programs to search for malicious software that work with your existing anti-virus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP, if you do not already have one.

More information can be found in the article troubleshooting Firefox problems caused by malware .

This solve your problems? Please report to us!

Tags: Firefox

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