I've been considering switching to Firefox due to these performance improvements, but the one feature that's always missing is for the location bar to autocomplete terms from other sources such as Wikipedia. Is there some add-on I can install that can fix this?
Safari is brilliant here. If you enter something in Safari's location bar, it will suggest Wikipedia and other search suggestions right away [1]. I use this feature all the time. But FF, out of the box, will only show suggestions from one source. Here [2] is what FF suggests; all the hits are from Google, and it doesn't try to be clever about showing what I might mean to search for. Notice how it offers to search Wikipedia, with this tiny, obscure icon at the bottom of the suggestions, which I find to be a completely useless feature (I have keywords for that). The top hit tends to be what Google puts in a special box in its search results.
Here is another nice thing Safari does [3] which I make use of all the time. I've not visited walmart.com, so that "Top Hit" is just because it's a popular site. I can't make FF do anything like that.
[1] http://i.imgur.com/83FfnPn.png
[2] http://i.imgur.com/T4p1NZv.png
[3] http://i.imgur.com/MkRP2Le.png