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Thunderbird has crashed! I downloaded Windows 10 last week and have had no problems till today...

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I successfully download Windows 10 recently and everything worked fine including today until this afternoon I got a Thunderbird has crashed message and can no longer receive or send emails! What's happened and what do I do to recover service?

I successfully download Windows 10 recently and everything worked fine including today until this afternoon I got a Thunderbird has crashed message and can no longer receive or send emails! What's happened and what do I do to recover service?

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Suluhisho teule