> > > Assuming that's not a typo, please try: > > > > > > --private-window > > > > Yep. Asking firefox itself (firefox --help) confirms that the > > option wants two dashes. > > See https://wiki.mozilla.org/Firefox/CommandLineOptions#-private-window > > or just try it! It works pefectly well with a single hyphen.
It seems to work either way, with firefox-esr 115.12.0esr-1~deb12u1 . I tested with <firefox --private-window https://www.debian.org/> and <firefox -private-window https://www.debian.org/>. So... in that case, we don't know why the OP's thing isn't working. Something something desktop blah blah. Try to find a log file where you can see what's wrong. If it's not a DE, you might be able to find logs in ~/.xsession-errors but with a Fancy Desktop Environment, the logs could be *anywhere*. Or nowhere.
