Current position:  Home > Default > I want to reset Firefox, and the message is that something is preventing the reset. I have closed all open windows and I still get the "Oops" message,

I want to reset Firefox, and the message is that something is preventing the reset. I have closed all open windows and I still get the "Oops" message,

Time:October 11
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I have uninstalled and reinstalled Firefox because I was receiving unwanted adware and was being directed to untrusted sites. Now I want to reset Firefox because I want to change the home page and toolbars, and something is preventing the reset. I have closed all open windows repeatedly, but the problem continues.
=====Moved from Firefox OS product to Firefox for Desktop product category by Moderator. -feer56=====
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'''Windows:''' Start > Control Panel > Uninstall Programs.
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