Provided by: lz4json_2-2_amd64 
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NAME
lz4jsoncat - decompress tool for mozilla lz4json format
SYNOPSIS
lz4jsoncat somefile.mozlz4 > somefile.json
DESCRIPTION
lz4jsoncat can unpack lz4json files as generated by Firefox's bookmark backups and session restore. The data is dumped to stdout.
CAVEATS
The input file must be mmappable - so you can't use a pipe here. 2018-12-25 lz4jsoncat(1)