So essential - how often would I want the formatting in the obviously completely different context? I used to paste things into the URL bar to remove formatting. I've discovered a colleague does the same.
You might want to be careful about pasting anything remotely sensitive into the URL bar as most browser automatically send your query to the search engine for auto-complete functionality.
I never changed my habits from Windows; I use the Run box, or type leafpad / mousepad. It's interesting that we've independently invented the same technique.