User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:9.0a1) Gecko/20110922 Firefox/9.0a1 Build ID: 20110922030907 Steps to reproduce: 1) Create an app tab, say from Facebook. 2) Click on a bookmark or link. A new tab correctly opens with the new page. 3) Go back to the app tab. 4) Enter a url in the url bar. 5) The new page opens in the *app tab*, not in a new tab. Actual results: The site in the app tab is not preserved. It is replaced by the site in the url. This breaks the app tab paradigm, and is inconsistent with the behavior when clicking on link and bookmarks. Expected results: The url open in a new tab, not the app tab.