Menú contextual en AppleScript

tell application "System Events"
    tell application process "Finder"
        set frontmost to true
        set ui to value of attribute "AXFocusedUIElement"
        tell application "Finder" to activate
        set a_class to class of ui
        if a_class is outline then
            tell ui
                try
                    perform action "AXShowMenu"
                    return
                on error
                    beep
                end try
            end tell
            return
        else if a_class is scroll area then
            tell outline 1 of ui
                set a_row to item 1 of (rows where it is selected)
                tell UI element 1 of a_row
                    try
                        perform action "AXShowMenu"
                    on error
                        beep
                    end try
                end tell
            end tell
        else if a_class is group then
            tell ui
                set an_item to item 1 of (UI elements where it is selected)
                tell an_item
                    try
                        perform action "AXShowMenu"
                    on error
                        beep
                    end try
                end tell
            end tell
        else if a_class is browser then
            tell scroll area 1 of ui
                set n_list to count scroll areas
                repeat with n from n_list to 1 by -1
                    tell list 1 of scroll area n
                        set selected_elements to (UI elements whose selected is true)
                        if length of selected_elements > 0 then
                            tell item 1 of selected_elements
                                try
                                    perform action "AXShowMenu"
                                on error
                                    beep
                                end try
                            end tell
                            exit repeat
                        end if
                    end tell
                end repeat
            end tell
        end if
    end tell
end tell

Buenos días, Michael.

Te reitero las gracias por tu ayuda.

Tu código funciona perfectamente para invocar el botón derecho del ratón en el Finder.

Intenté cambiar en él la cadena "Finder" por "Google Chrome" a fin de poder reutilizarlo con el navegador Chrome y, desgraciadamente no ha funcionado.

¿Me podrías ayudar a conseguir el menú contextual en dicho navegador mediante código AppleScript?

Gracias.