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Tls handshake has made firefox unusable

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Firefox has become unusable because of the tls handshake. I have done the safe mode and the reset of firefox. This started when firefox quantum was released.

Firefox has become unusable because of the tls handshake. I have done the safe mode and the reset of firefox. This started when firefox quantum was released.

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I dont use these programs and windows firewall is configured.

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Try to disable IPv6 (check for other possible causes as well).