Firefox save GIFV as MP4 or WEBM?

[Auric]

With right-click -> Save Video As, IE behaves as expected and saves as MP4 whereas Firefox presents the file type as Firefox HTML document. How to fix?

 

[ninaholic37]

webm here

http://i.imgur.com/bg6OSle.gifv

 

[Auric]

Yes, imgur is the primary source where this problem is encountered. Also, the GIFV is presented as WEBM to Firefox but MP4 to IE. MP4 in Firefox would be preferable as well. But in any case, what happens in Firefox is as described in OP either initially or upon subsequent right-clicks.