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Firefox lockup Window7 When Running Download Helper

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PVman
PVman
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Once in a while, after starting Firefox in my new Window7 laptop, the whole laptop would freeze. Task manager wouldn't open until Firefox crash or shutdown by Window7. I notice the download helper addon running something. After reboot and Firefox restarted, Firefox couldn't find the old browser profile.

Once in a while, after starting Firefox in my new Window7 laptop, the whole laptop would freeze. Task manager wouldn't open until Firefox crash or shutdown by Window7. I notice the download helper addon running something. After reboot and Firefox restarted, Firefox couldn't find the old browser profile.