Decompress Firefox bookmark files with .jsonlz4 extension, a plain lz4 format but with custom header (so-called mozLz4).
Run it from the terminal:
# build from source
:~$ go build -o go-dejsonlz4
# or, install from the GitHub repo
:~$ go install github.com/giulianopz/go-dejsonlz4@latest
:~$ go-dejsonlz4 -h
Usage: go-dejsonlz4 [-h] IN_FILE [OUT_FILE]
Example: go-dejsonlz4 ~/.mozilla/firefox/$PROFILE_NAME/bookmarkbackups/$FILE_NAME.jsonlz4
Decompress Firefox bookmark files with .jsonlz4 extension from IN_FILE to OUT_FILE:
* -h, display help message and exit,
* IN_FILE='-', uncompress from standard input,
* OUT_FILE='-' or missing, uncompress to standard output.Or use it in your go module:
package main
import (
"fmt"
"os"
dejsonlz4 "github.com/giulianopz/go-dejsonlz4"
)
func main() {
inputData, err := os.ReadFile(os.Args[1])
if err != nil {
panic(err)
}
outputData, err := dejsonlz4.Uncompress(inputData)
if err != nil {
panic(err)
}
fmt.Println(string(outputData))
}- the original C code to perform decompression used by Mozilla
- LZ4 explained
- Go porting of the C reference version
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