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whenever i reboot my computer firefox disappears

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I've downloaded firefox twice now, and when i've either started or restarted my computer, it's not there anymore.

Why

I've downloaded firefox twice now, and when i've either started or restarted my computer, it's not there anymore. Why

All Replies (1)

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Which security software (firewall, anti-virus) do you have?

Some use virtualization and restore files on the next reboot.