I want to do some specific things in a bash script if the current window belongs to the Firefox class

  • I am aware of:
xdotool getactivewindow


xdotool search -class firefox

then I could do some test to know if the former result is in the latter list inside my bash script but:

  • Is there a better way to do that with xdotool?

NB: I am also aware that Autokey can do the trick but I cannot make it work with i3wm see that open issue


Since you are in Bash:

curr=$(xdotool getactivewindow)
firefox=$(xdotool search -class firefox)
if [[ $firefox = *$curr* ]]; then
    echo Current window is of firefox class.
    echo Current window is not firefox class.

The if clause tests whether $firefox contains an occurrence of $curr.

  • Is this conditioned by whether one works on Wayland or X11 ? Asking because less than a year ago, I saw that xdotools was kinda quirky in that sense (with Wayland)... and, yes, I know: a year is a looong time. – Cbhihe May 25 '20 at 11:34
  • 1
    Tx for the good help. I can use that but I am very surprised that there is no an easy way to do that with xdotools – pietrodito May 25 '20 at 11:39
  • 1
    @Cbhihe To be honest, I don't know, sorry. I have always only used X11. But notice that the manual says "xdotool - command-line X11 automation tool" and later "It does this using X11's XTEST extension and other Xlib functions." So I guess only X11. – Quasímodo May 25 '20 at 11:40
  • @pietrodito: consider unix.stackexchange.com/help/someone-answers if the answer is satisfactory for you... ;-) – Cbhihe May 25 '20 at 11:42

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