In Firefox, if I drag out an image, it will open a new tab displaying only the image.
And sometimes ago, it can drag out inline base64 images. But now, I can't do it.
You can try drag the images at https://cdn.rawgit.com/cqcn1991/Wind-Speed-Analysis/master/output_HTML/marham.html
Most of it can't open a new tab.
I'm not sure what's wrong with this, because not long ago I was able to do this.
UPDATE:
Bug reports: https://bugzilla.mozilla.org/show_bug.cgi?id=729587 https://bugzilla.mozilla.org/show_bug.cgi?id=923832