I finally got tired of this and created a nice little grease monkey script. You can download it here.
After you load it into grease monkey the script will automatically update all fields with the following basic xss test:
The following html elements are effected:
- text boxes
- text areas
- drop down menus
- hidden fields
The script will modify the mentioned elements for every page you view. So make sure to turn it off after you are done testing.