Rated 5 out of 5 stars
Wow, my new favorite context search! Nicely replaces the old long-time standard "Context Search 0.4.6" with a more modern menu with a built-in default (that old extension always required my to re-enable the 'extensions.contextsearch.hideStandardContextItem' parameter so I could have quicker access to the default).
Only problem I ran into was I had to restart Firefox to get it to install, I kept getting a "could not update a necessary file" or similar until I did. But then it did install without restarting again.