I extracted firefox and digged into "config.ini" i found the "-ma" switch for auto install with GUI mode which shows the installation progress, and the "-ms" switch for totaly silent mode. These are also working with the unextracted install file. So i edited a config.txt like ;!@Install@!UTF-8! RunProgram="FIREFOX.EXE -ms" ;!@InstallEnd@! Made a 7z file without compression(because it's allready good compressed) from "Firefox Setup 1.0.2.exe" and named it "FireFox.7z" finally i build a sfx install file: copy /b 7zs.sfx + config.txt + FireFox.7z FireFox.EXE And it worked fine & silent
