You can still press the F10 key or tap the Alt key to bring up the hidden Menu bar or have the menu bar visible all the time via the right-click context menu. Firefox 29 and later versions have the Australis interface that looks different than the user interface in Firefox 28 and older versions. *With the Australis interface the orange Firefox menu button has been replaced by the three bar Firefox Menu button at the far right end of the Navigation Toolbar<br>A consequence of this new menu button is that you no longer can hide the Navigation Toolbar *There is a star like button to the right end of the search bar on the Navigation Toolbar to bookmark the current web page and a "Show your bookmarks" button next to it to open the Bookmarks in a drop down menu See also: *https://support.mozilla.org/kb/how-to-make-new-firefox-look-like-old-firefox *https://support.mozilla.org/kb/common-questions-after-updating-to-new-firefox *https://support.mozilla.org/kb/learn-more-about-the-design-of-new-firefox *http://forums.mozillazine.org/viewtopic.php?f=38&t=2824649