It is possible to bypass the paywalls on certain news sites (wsj, nytimes, etc) by changing your browser referal.
The simplest way to do this is to do a search on the name or url of the article and click the first link from a search engine. This has been possible for quite a while, as shown in this lifehacker post from 2010: http://lifehacker.com/5443857/get-free-access-to-pay-walled-content-with-a-simple-google-hack
This addon simplifies that process by simply changing the browser referal field to a search engine and reloading the page elements. It works quickly and consistently; all you have to do is click a button.