On my MBP, I usually Command-click a link as the equivalent of middle-clicking (opening in a new tab), since Ctrl-clicking is like right-clicking (open context menu). However, with the new review and site-switcher icons, Command-click behaves like a normal click (opens the corresponding drop-downs). On an Ubuntu VM running on the same MBP, Ctrl-clicking opens the dropdowns.
What happened to break Command-click open-in-new-tab for these two? This aggravates the slowness of these dropdowns.