firefox uses a custom file format to write its bookmark backups. It's not very advanced, just... different from simple lz4-compressed json files. This is painful when you're trying to peek at the actual data.
Here's a port of lz4json, a simple decoder written by Andi Kleen. It assumed a little endian machine, but I guess we can do a bit better. Thoughts?
lz4json.tgz
Description: Binary data
-- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE