Ubiquity, a new Firefox add-on, combines the high-speed access to and manipulation of information of Quicksilver with the user-friendly language interpretation of the Assist button, bolting both onto the browser. Ultimately, it has the potential to be something close to a command line interface for the web.

With the add-on installed, all you have to do is press the command key combination - Alt+Space by default on the Mac - and start typing a command. There are lots of simple ones. Type wikipedia¹ followed by a search term, hit enter, and you’re transported to the relevant results. Type email Don't forget our lunch on Tuesday! to Steve, hit enter, and you’ll be taken to Gmail, with your message all ready to send.

Ubiquity gets really clever when you want to combine its features. What if Steve hasn’t been to the restaurant you’re meeting at? Before sending the mail Ubiquity helped you to create, invoke it again, and type map Stravaign. Yep, a Google Map centred on the best Glasgow pub will appear, along with a link to insert it directly into your mail message.

Like Quicksilver, Ubiquity is a wee bit fiddly to explain, and doesn’t sound quite as thrilling as it does when seen in action. So here’s a video walk-through (skip forward forty-five seconds if you want to avoid the hip marketing-speak intro):

Sure, developer Aza Raskin is showing Ubiquity in the best possible light. In real life, it’s pretty buggy - fair enough, since it’s a prototype. It’s very limited in scope, too - if you don’t use Google’s calendar and mail applications, the best features won’t be much use. And it won’t do some of the things you might expect it to, like lifting microformatted information from web pages and dumping them into your address book or calendar. But it has huge potential to turn disparate web services, which, until now, we’ve had to wrangle together ourselve with unwieldy cutting and pasting, into one great big useful thing.

Also, in the wake of the recent fawning over Aurora - a vision of the coming web in which useful combinations of services were buried under needlessly jazzy 3-D interfaces controlled by daft futuristic peripherals - and similar mock-ups, it’s good to see a project which offers some of the basic utilities imagined by the futurologists on the Aurora team, right now, using a simple, clear interface that takes advantage of one skill all web users share: the ability to type words in a language they understand.

More info:

• Introducing Ubiquity
• Ubiquity 0.1 User Tutorial
• Ubiquity In Depth
• Ubiquity cracks open personal mashup tinkering *Writing a Delicious command for Ubiquity

Thanks to Neil and Matt for pointing me in Ubiquity’s direction!

1. Or just wi. Ubiquity is clever enough to work out what you’re after, or will present a list of possible commands to choose from. It will also work out that, if you’ve selected some text on a web page, that’s what you want to search for.↩