Open Chrome's current tab in Firefox or vice versa

firechrome.applescript

tell application "System Events"
	set myFrontMost to name of first item of (processes whose frontmost is true)
end tell

property theURL : ""

if myFrontMost is "Google Chrome" then
	tell application "Google Chrome"
		set theURL to URL of active tab of window 1
	end tell
	tell application "System Events"
		do shell script "Open -a Firefox " & theURL
	end tell
else if myFrontMost is "Firefox" then
    tell application "Firefox" to activate
	tell application "System Events"
		keystroke "l" using command down
		keystroke "c" using command down
		delay 0.1
	end tell
	set theURL to the clipboard
	tell application "Google Chrome"
		activate
		set myTab to make new tab at end of tabs of window 1
		set URL of myTab to theURL
    end tell
end if