If you use Subversion or other web based tools you might have cgi scripts/web pages that take the url of another page as an argument, this is a nice trick for easily entering the the new page with the other url as a refference.
Create a new shortcut in firefox.
Right click and select properties.
Set Name to What ever you would like.
Set Location to be:
goto google.com then select your new shortcut then you will load http://newpage.com/new.php?url=google.com
Tip Originated from here: