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Firefox updated and now will not work.

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Firefox updated and now won't even open. I've tried resetting my laptop, running virus scans and system restore.

Firefox updated and now won't even open. I've tried resetting my laptop, running virus scans and system restore.

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It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See: