The PrefBar extension has a Text URL button described at <http://prefbar.tuxfamily.org/buttons.html#texturl>. This button is supposed to allow me to mark a URI that is merely a text string (NOT a link) and open a new tab at that URI. The button no longer works. Because this capability is inherent in "vanilla" Firefox, the developer of PrefBar declines to fix the button. Not being a user of Firefox, I am not sure what is the user interface for this. I think a context menu entry "Go To URI" would be appropriate. A simple right-click should not trigger this capability because a user might instead want to copy the text string or view the HTML source around the string (existing context menu items). While the button always opened the URI in a tab, the Link Behavior preference for "Open links meant to open a new window in" should control where the new page opens.