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i can not open firefox or uninstall it

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When I try to open firefox it won't open, when I try to unistalo it, I get a prompt telling me I need to close firefox, even though the browser is not open.

When I try to open firefox it won't open, when I try to unistalo it, I get a prompt telling me I need to close firefox, even though the browser is not open.

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-> Open Task Manager -> Processes panel -> right-click firefox.exe and click End Process Tree -> Close Task Manager

-> Uninstalling Firefox

-> Installing Firefox on Windows

Check and tell if its working.

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