One of my favorite browsing techniques is to highlight a selection, right-click and choose Search Google for...  (in Firefox.)  Google Reader appears to have broken this functionality.  On a normal page, after I highlight a given set of text, and right-click, the selection remains selected.  When viewing the Google Reader page, when I right-click, the selection becomes unselected.  I'm awfully certain that this worked a week or so ago.  I haven't yet been able to try it on the Mac.  On windows, I'm using 2.0.0.13.