The best solution on Windows is to install the browser in a subdirectory of the shotfactory folder, e.g. shotfactory\firefox30, then enter firefox30\firefox.exe in the browser command field.
Windowsil on parim lahendus installida brauser kuvatõmmisevabriku alamkausta, nt shotfactory\firefox30, misjärel sisesta brauseri käsuks firefox30\firefox.exe.