Is it possible to use AppleScript to open a link in a new tab in Safari?
Not the shortest solution but also works, and not only in English ...
tell application "Safari"
activate
end tell
tell application "System Events"
set frontmost of process "Safari" to true
keystroke "t" using {command down}
end tell
set myURL to "anyurl.html"
delay 2
tell application "Safari" to set the URL of the front document to myURL