Senseis Search Plugin For Firefox
Plugin available at http://www.lyrically.net/sensei.
Alternatively you may use the Keyword feature in Mozilla's browsers to add search features to the location bar. This solution gives a quick way to search Sensei's without using screen real-estate or requiring you to switch search engines between searches. (Nor installing potensially dangerous extensions from non-mozilla sites, though this one is probably safe)
Go to any Sensei's page and bookmark it under f.ex the "Quick Search" folder. Edit the bookmark by left-clicking it in the menu and change the following fields:
- Name: Sensei's Library: Quick Search
- Location:
http://senseis.xmp.net/?%s
- Keyword: sen
Now any input to the location bar that starts with "sen " will automatically go to the bookmarked URL with "%s" replaced with the term following "sen ". This allows you quick access to terms and pages at sites like Wikipedia, Senseis's and Urban Dictionary.
See http://www.mozilla.org/docs/end-user/keywords.html for more information.