So you’ve got Greasemonkey on your Firefox browser. Now
Search for SEARCH TERMS (hit enter)
Click on Search Term Highlighter (the third one)
This cute little program highlights your search terms on the various web pages--something I need sometimes.
Click on VIEW SCRIPT SOURCE if you want to see what it looks like otherwise click the INSTALL THIS SCRIPT button.
For an interesting though somewhat difficult to hear presentation on Firefox and it’s add-ons goto
http://www.sirsidynixinstitute.com/archive.php and listen to
Your Firefox can do That?
It’s the sixth one down.