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My Firefox does not work anymore. It does not open! Try to install again but it fails. What to do?

Luffe
Luffe
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When I unistall Firefox and reinstall it gain I get a message saying that Firefox is already running and has to be closed?

When I unistall Firefox and reinstall it gain I get a message saying that Firefox is already running and has to be closed?

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the-edmeister
the-edmeister
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See this support article: https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding