Tracking bug ...
Suggesting bug 171681, bug 131456 and bug 174760 for inclusion in the 'depends on' list. They might be duplicates, but since the first two include additional aspects like cache, page content and the like, I filed the third one to reduce the test case as far as possible.
285872: GIF decoder: Replace dynamic allocated gather buffer with fixed buffer (as no more than 256 bufferspace is needed)
bug 325906: Remove one malloc from the JPEG decoder, and some optimizations bug 143046: Need to Keep GIFs at original 8 bit or optimized.
mlk key word
There's only one bug left blocking this. There's no point having a tracking bug for a single other bug, so I'll close this, and mark the single unresolved blocking bug (bug 398983) as also blocking bug 164421.