Kamp: A Generation Lost in the Bazaar

Supporting TIFF in a Web browser is simply a bad idea. There's no important use-case which isn't just as well served by other image formats. Exposing TIFF support means that some site might come to depend on it and now the Web platform has just a bit more unnecessary complexity. Also, you'll have increased the security attack surface for no good reason.

Firefox can use system codecs, that's not the issue here.