Awhile back I posted about the new search results interface Google was supposedly testing. I can definitely confirm that today. This blog post describes how to set a new cookie in Firefox that will force Google to display the new results page for you. Since the instructions are a little off (and took me some fiddling to make them to work), here's my version:

Update: In the comments reader Whosawhatsis has posted an easier way to accomplish the same thing without installing any extensions. Try that first.

1. Download and install the Add N Edit Cookies extension. Restart Firefox.

2. Run the extension by going to Tools > Cookie Editor.

3. Type "google" into the box at the top and click "Filter/Refresh". Scroll through the list and look for a cookie called "PREF" (Disclaimer: I don't know what this cookie is really for, so modify it at your own risk!).

   1. If it exists, double-click on it and change the "Content" field to the following (remove the line break first):

      ID=fb7740f107311e46:TM=1142683332:
      LM=1142683332:S=fNSw6ljXTzvL3dWu

   2. If it does not exist, you must create it. Click on Add. Enter PREF for the Name and the bold string above for Content. Set the Domain to .google.com and / for the Path. Set the expiration date to whatever you want--pick "Expire at end of session" if you only want to see the "new" Google until the next time you launch Firefox. Otherwise set a date far in the future.

4. Click Save and then close out of the Cookie Editor. The next time you search Google you should see the new search results page. If you get sick of it, you can just delete to cookie and it'll go away.