I consult a lot of different searchable sites for information, and I was wondering if there's an add-on or inbuilt feature to have Firefox use a different search engine on-the-fly.
For example, if I wanted to search wikipedia specifically, I would type something like
and it would search Wikipedia for cats. I would want to be able to have multiple different search providers that I could switch between using this methodology.
Does an addon exist for this or would I have to create such an addon?
I remember in Opera you could do something like this.