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Download helper icon does not show up in customize or toolbar

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I have download helper listed as installed. The icon does not show in the taskbar. The icon also does not show up in the customize panel. Does anyone know what is happening?

Firefox 35.0.1

I have download helper listed as installed. The icon does not show in the taskbar. The icon also does not show up in the customize panel. Does anyone know what is happening? Firefox 35.0.1

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