Quick search in history (v0.2)
JetTweet is a Twitter Jetpack for Firefox
Search easily and browse Flickr images
Look up selected text on Wolfram|Alpha
Search for SelectedText with Twitter Kensaku(Japanese Site).
Adds search of Google Groups to results of Yahoo! Search
JetWiki is a wiki Jetpack for Firefox
Do quick google search of words by simply selecting the words and clicking on the Google Icon on status bar
If you are searching for Jogging mp3 music, just use this jetpack, to find.
Search a selected text in the german Wikipedia. Same as Wikify plus Contextmenu.