1 Key Web Search v1.43
1 Key Web Search makes web searching faster by associating your keyboard Keys with your Search Engines for instant access.
Although Firefox has improved web searching over the last few years, this Add-on will speed it up even more by eliminating the mouse from your web searches. Since you need to be typing to enter your search text anyway, it doesn't make ergonomic sense to have to do anything with the mouse in order to search.
This Add-on also can search the web for text displayed on any web page with one keypress.