Q:

How do I set custom search engines in Android?

For years now, on every browser I own, Firefox, Opera, Chrome and Internet Explorer, I've assigned w as a shortcut/keyword to the custom search engine http://www.google.com/search?q=site:wikipedia.org+%s&btnI.  That is, I just type w android comparison to jump to the befitting wikipedia article.  I use many, many other custom searches.
Is there a way to set this up on Android?  Not necessarily with the stock browser? 

A:

Yes, with Firefox Mobile. The search plugins from addons.mozilla.com can be installed directly in Firefox mobile. 
If the search plugins from addons.mozilla.com don't cut it, Shortmarks.com lets you make your own search plugins to save on your Firefox install. This guide might help.

