Ubuntu's Firefox May Gain JPEG 2000 Support
Phoronix: Ubuntu's Firefox May Gain JPEG 2000 Support
JPEG 2000, the image file format that has been around for nearly a decade and offers better compression performance and greater flexibility in the code-stream that can allow for higher quality photographs compared to a traditional JPEG, may get a boost on the Linux desktop. JPEG 2000 hasn't seen much adoption in large part because of the lack of web browsers that natively support this JP2 ISO standard, including Firefox...
obligatory "screw you pavlov" post
AFAIK, Konqueror supports everything KDE itself does - which includes JPEG2k and MNG.
Last time I tried the GIMP plugin for MNG it was half-finished and pretty crap. The part I'm more interested in is JNG (JPEG compression + alpha transparency).
This APNG format is complete and utter garbage. I haven't seen a single app that actually supports reading it besides Firefox, never mind creating them. That makes it about as "Portable" as VML.
It only exists at all because one particular Mozilla developer is an awful troll, and his plan to kill off MNG in Mozilla - by setting impossibly tight library size requirements - backfired spectacularly; the MNG devs almost managed it before the rug was pulled out from under them. Go check out bug 18574 on bugzilla for the complete circus. It's a glimpse into the infantile politics that go on in Mozilla's inner circles.