Rated 5 out of 5 stars
I'm fully satisfied with this plugin. I love that I can search quickly from the address bar, this is even more convenient than using the searchbar, which I also found great when it first appeared.
However, if I had known about the built-in smart keywords feature in Firefox earlier (http://support.mozilla.org/en-US/kb/Smart keywords) I would probably not have installed this one.
The way I see it there are the following differences between these two:
- instafox uses search suggestions, which I don't use too often (only sometimes for Wikipedia and even more rarely for dictionaries)
- instafox gives you the context menu, which I don't use at all.
- Smart keyword based searches are essentially bookmarks and thus synchronized over firefox synch, which I really like as I use Firefox on two different systems. As far as I know plugin data are not synchronized as yet.
Anyway, I think 5 stars are well deserved.