Firefox OpenSearchFox

This is one tool I've been waiting for for years.. I've set up my own Firefox search engines before. But it was a tedious effort, and I never managed to get around to doing it for the many internet applications I use on a daily basis. Now the effort has been taken out of the setup with OpenSearchFox, a Firefox plug-in that allows you to immediately identify any search field on any web page and instantly add it to your Firefox search bar.

All you have to do is install the plug-in, then browse to any web site with a search field, right click on the field, and select the "Add OpenSearch plugin" option. Search is now available in your Firefox toolbar along with Google, Wikipedia, etc.