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My computer doesn't meet the requirements for this Firefox what can I do?

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I tried to install Firefox for windows 7 but it cam up with this " A required privilege is not held by the client" I don't know what this means but it won't let me install Firefox.

I tried to install Firefox for windows 7 but it cam up with this " A required privilege is not held by the client" I don't know what this means but it won't let me install Firefox.

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This means you need be the administrator to install Firefox!