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lightning-3.3-sm+tb-linux.xpi doesn't install in Thunderbird 31, it tries to send an email instead

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I have Thuderbird 31 on Ubuntu 14.04. I'm trying to install Lightning and the Add-ons Manager indicates that Lightning 3.3 is the proper version. If I set it to be opened by Thunderbird, the download results in Thunderbird trying to send an email with Lightning-3.3-sm+tb-linux.xpi as an attachment. If I save the download to a directory on my system and execute it, the same attempt to send an email occurs.

How do I successfully install Lightning on my Thunderbird?

I have Thuderbird 31 on Ubuntu 14.04. I'm trying to install Lightning and the Add-ons Manager indicates that Lightning 3.3 is the proper version. If I set it to be opened by Thunderbird, the download results in Thunderbird trying to send an email with Lightning-3.3-sm+tb-linux.xpi as an attachment. If I save the download to a directory on my system and execute it, the same attempt to send an email occurs. How do I successfully install Lightning on my Thunderbird?

Saafara biñ tànn

Lightning

Rightclick on the Download button and choose "Save Link As" to save your file

Jàng tontu lii ci fi mu bokk 👍 2

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Saafara yiñ Tànn

Lightning

Rightclick on the Download button and choose "Save Link As" to save your file