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URL: https://support.mozilla.org/en-US/questions/1042436

⇱ Open a .MHT attachment in Internet Explorer instead of Thunderbird. | Thunderbird Support Forum | Mozilla Support

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dconner01

When I get an attachment with a .MHT extension, Thunderbird automatically tries to open it. I checked the Options/Attachments/Incoming but it does not list .MHT and I see no way of adding it?

If I save it to my hard drive and open it with Internet Explorer it opens without issue.

When I get an attachment with a .MHT extension, Thunderbird automatically tries to open it. I checked the Options/Attachments/Incoming but it does not list .MHT and I see no way of adding it? If I save it to my hard drive and open it with Internet Explorer it opens without issue.

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Chosen Solution

dconner01 said

When I get an attachment with a .MHT extension, Thunderbird automatically tries to open it. I checked the Options/Attachments/Incoming but it does not list .MHT and I see no way of adding it? If I save it to my hard drive and open it with Internet Explorer it opens without issue.

This addon might be helpful:

Thanks

''dconner01 [[#question-1042436|said]]'' <blockquote> When I get an attachment with a .MHT extension, Thunderbird automatically tries to open it. I checked the Options/Attachments/Incoming but it does not list .MHT and I see no way of adding it? If I save it to my hard drive and open it with Internet Explorer it opens without issue. </blockquote> This addon might be helpful: * https://addons.mozilla.org/en-US/thunderbird/addon/unmht/ Thanks