You can also make a FireFox dynamic bookmark to simplify this even more:
Sorry, I can't get the forum to display the literal text, it converts it to URL. just hover over it, or right click the link and click COPY LINK.
The '%s' in the URL is a variable for anything following the keyword.
To search jeepforum/f12, all i do is type
jf my search
jf best springs
jf why no flex?
etc... in the address bar of firefox, regardless on what page I'm currently viewing.
Instant jeepforum.com/f12 search
I have another one for jeep forum classifieds called jfc, and many more for other sites I frequent.
and it comes up with the google custom search results.