System firefox returns false. Why?

Hi!
Nothing happens typing the following:

C:>irb
irb(main):001:0> system “firefox.exe”
=> false
irb(main):002:0> exit

while this command opens firefox:
C:>firefox.exe

C:>

how comes? any ideas?
Thanks

I’m not on a Windows machine, so I can’t replicate, but system should
return
false if the command exits with a non-zero status. Maybe it’s a problem
internal to Firefox on Win? Seems to work as expected on Linux FWIW.