What I have till now is this:
delay 1
tell application "System Events"
keystroke "n" using {shift down, command down}
delay 5
keystroke "l" using {command down}
keystroke "https://www.nba.com" & return
delay 1
keystroke "t" using {command down}
keystroke "l" using {command down}
keystroke "https://www.wikipedia.org" & return
delay 1
keystroke "t" using {command down}
keystroke "l" using {command down}
keystroke "https://www.cnn.com" & return
delay 1
end tell
end alfred_script
But it does not work consistently . Sometimes it works as it should be, sometimes it just adds additional tabs to the Firefox Window in focus, sometimes it opens a new window, opening the previous set of tabs, ...
Is this a problem with the script of with Firefox?
Thanks
Jürgen