User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36 Steps to reproduce: Received an email with a TIFF image inline. Actual results: Thunderbird did not display the image. Right-click menu does not show "Save image" Right-click menu action "Copy Image" does not work (tried to paste it into Gimp). Expected results: Thunderbird should've displayed the image. Thunderbird should've given menu action "Save Image/File" on right-click menu.
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