i wrote this for those who have problem like me to perform a siltent install step by step... fastest way i find
Make a folder and put all in
1-Download your language package here
!! dont rename .exe !!
2-Create a text file, and rename like firefox.ini
in this one copy and paste this
[Install]
QuickLaunchShortcut=true
DesktopShortcut=true
3- command file example to launch install
create a .bat file and copy paste this
rem Firefox install
start /wait FIREFO~1.EXE -ms/firefox.ini
pause
exit
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All file in the same folder
dont rename executable
and
All will be fine now. Thank to share your easy way if different