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I can't send email in firefox but can in Internet Explorer and my tablet. How can I fix this?

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I cannot reply to forward or send messages from Fire Fox on my P.C. but can do so from my P. C. on Internet Explorer and my tablet. How can I fix this?

I cannot reply to forward or send messages from Fire Fox on my P.C. but can do so from my P. C. on Internet Explorer and my tablet. How can I fix this?

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May I ask what email provider are you using?

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Is it Yahoo mail? Another user reported this about an hour ago. Can you try the suggestions I made over here: Yahoo mail not working in Firefox(latest version); IS working IE. Started today June 5.