ExploreIt lets you perform a search across all of Khan Academy's vast ocean of educational content by letting you type directly within the location/address bar and then automagically takes you to http://www.khanacademy.org/ search results page, in the process saving you a few clicks and time!
Note: ExploreIt does not consume memory while not being used.
谷歌浏览器、其他Chromium内核的浏览器