Apple script to save the URLs of all currently open tabs in Safari to a text file

save-url-safari-tabs.scpt

-- Set up the initial document
set output to ("List of open tabs in Safari" & linefeed as string) & "=======================" & linefeed as string

tell application "Safari"
	
	-- Count the number of Windows
	set numWindows to number of windows
	
	
	repeat with w from 1 to numWindows
		
		--Count the number of Tabs
		set numTabs to number of tabs in window w
		
		repeat with t from 1 to numTabs
			
			-- Set the Tab Name and URL values
			set tabName to name of tab t of window w
			set tabURL to URL of tab t of window w
			
			-- Create the Tab link and write the code
			set output to output & tabURL & "    " & tabName & linefeed as string
		end repeat
	end repeat
end tell

-- Write the entire document to TextEdit

tell application "TextEdit"
	activate
	make new document
	set the text of the front document to output
end tell

As an alternative for saving groups of tabs for future use, I highly recommend the safari add-on Tab Space.