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Firefox crashes

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Firefox wont let me stay on the internet, keeps crashing whenever I do anything

Firefox wont let me stay on the internet, keeps crashing whenever I do anything

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There are multiple reasons why Firefox might crash. Try This support article for troubleshooting tips. If that doesn't help, try to give us more information.

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That is a problem with Comcast/Xfinity Constant Guard IdVault (PInvokeCalliWorker; bug 684748)