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Browser not opening

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I've downloaded the browser and not after an hour it stops working and wont decide to open anymore, i've tried solutions on youtube for example "Firefox.exe -p" or "Ipconfig" I dont know what to do is it possible it can be resolved?

I've downloaded the browser and not after an hour it stops working and wont decide to open anymore, i've tried solutions on youtube for example "Firefox.exe -p" or "Ipconfig" I dont know what to do is it possible it can be resolved?

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Are you trying to upgrade or is this a fresh install with no saved data Ex. bookmarks and passwords?

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When Firefox won't open, do you get an error message that Firefox is already running?

If not, do you get a Taskbar button indicating that Firefox is running, and there should be a window, but it doesn't come onto the screen?