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When asked if I would like Firefox to be my default browser and click yes an error appears on screen - "Your computer must be restarted to complete a previous upgrade of Firefox. Do you whant to reboot now?" see details

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Robmac
Robmac
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When asked if I would like Firefox to be my default browser and click yes an error appears on screen - "Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?" After the computer reboots I again go to make Firefox my default browser and again this error message appears.

When asked if I would like Firefox to be my default browser and click yes an error appears on screen - "Your computer must be restarted to complete a previous upgrade of Firefox. Do you want to reboot now?" After the computer reboots I again go to make Firefox my default browser and again this error message appears.