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Firefox Updater invalid security certificate

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Ken's Firefox
Ken's Firefox
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I rebooted my Windows computer and the automatic updater for Firefox started up, but my firewall blocked it because it said it had an invalid security certificate. I tried to allow it, but it again said I had an invalid certificate. I then blocked it, and it gave the same message. So I rebooted my computer again, and Firefox came up working properly, saying I had the newest Firefox version.

The firewall (via Norton Security) said there were less than 5 persons using this installer. That alone is weird.

What should I do the next time this happens? Thanks!

I rebooted my Windows computer and the automatic updater for Firefox started up, but my firewall blocked it because it said it had an invalid security certificate. I tried to allow it, but it again said I had an invalid certificate. I then blocked it, and it gave the same message. So I rebooted my computer again, and Firefox came up working properly, saying I had the newest Firefox version. The firewall (via Norton Security) said there were less than 5 persons using this installer. That alone is weird. What should I do the next time this happens? Thanks!

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cor-el
cor-el
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It is possible that Firefox retrieved files via an open http connection that got upgraded to https causing this issue because the server doesn't have a proper certificate. Firefox will use a hash that is part of the update.xml files (retrieved via https) to verify that the file is correct, so it doesn't matter the http is used and not https.