[Bug 673342]

[Mtanalin]

(In reply to comment #55)
> GIF which doesn't have any valid use cases whatsoever.

GIF is typically more efficient (provides less file size) than PNG for
low-resolution graphics — probably because PNG header is larger than GIF
header. For example, a 1×1 white image is 43 bytes in GIF vs. 72 bytes
in PNG.

But the whole GIF story is off-topic here anyway.

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https://bugs.launchpad.net/bugs/673342

Title:
  [wishlist] Support displaying inline tiff images (to support mails fom
  Mac Mail)

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