$ firefox $(cat file.url | grep -i ^url=* | cut -b 5-)
Opens a .url file in Firefox which in the above example, is called file.url (Windows .url files are basically just text files, so they can be parsed with a few commands). In the above example, cat is used to load the file, grep is used to filter out unnecessary lines (the caret(^) should help remove those pesky "BASEURL" lines), and cut is used to remove the first five characters of the remaining line (which should be
This hack has not been tested with URL's which use "specail characters" (quotes, semi-colons, ect), except ampersands, percent signs, and question marks. Tested only on gnu/linux (using bash and sh).