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Will not open, removed from programs to try and reload, says I have to close Firefox before can complete download- HELP

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Firefox would not open from start or program menu. Deleted it from start and from programs to try and download again. When it gets to the run menu, a prompt appears stating that I need to close Firefox before I can continue. I have deleted it from firewall also.

Firefox would not open from start or program menu. Deleted it from start and from programs to try and download again. When it gets to the run menu, a prompt appears stating that I need to close Firefox before I can continue. I have deleted it from firewall also.

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If for some reason it appears in your programs, use Revo Uninstaller to fully erase it from the drive. It could also be a registry problem. I suggest using CCleaner. Both can be downloaded for free at http://ninite.com/ . Hope this helps.