With Instant Previews, Google has added one more feature, albeit one that seems to have been copied from Bing, to its search engine. While you may argue the usefulness of this feature, not being able to check it out at all can be frustrating. If you, like me, are an avid Opera user, this is most likely your case. However, a quick solution is at hand.
Point your browser to http://www.google.com/landing/instantpreviews, and click on the 'Try it now' button. Now, search for any term as you normally would. When the search results page loads up, right-click on an empty part of the page (or press F12 if you're a keyboard junkie) and click 'Edit site preferences'. Jump to the 'Network' tab and change the 'Browser identification' option to 'Identify as Firefox'. OK all the dialogs and refresh the page.
Voila!
