Firefox
Absent since although it’s possible to get the window’s title, it’s not possible to get its URL (it used to be, before version 3.6
). It’s possible via hacky ways that consist of sending keystrokes, but those can be unreliable. This bug is being tracked in Bugzilla.
Opera fails for me. I'm on Opera 15 Stable. There's also no AppleScript dictionary for Opera on my system.
I haven't found any word on the entire internet about Opera dropping AppleScript support, but that's certainly what it feels like😕