Version 10 installed but at various times converts back to ver 3. What can be done to keep ver 10 intact?
I have installed FireFox Ver.10 numerous times but at various times, perhaps after using for several days, it will somehow revert back to Ver. 3. What is happening and how do I fix it?
Which security software (firewall, anti-virus) do you have?
Some security software has virtualization features that can restore files in the Firefox profile folder.