You should update to the current Firefox 29.0.1 release. You can find the full version of the current Firefox 29.0.1 release in all languages and for all Operating Systems here: *http://www.mozilla.org/en-US/firefox/all.html See: *https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile *http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox Be cautious with moving all files as some can have absolute references to files on the Windows computer, so best is to copy only the SQLite database files and other essential files like the key3.db file that is needed for the passwords and redo all other customizations (install extensions anew). *http://kb.mozillazine.org/Moving_your_profile_folder ---- Note that the current Firefox 29 release has 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 *With the Australis interface the orange Firefox menu button has been replaced by the three bar Firefox Menu button at the far right end of the Navigation Toolbar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 *It is still possible to have the menu bar visible via the right-click context menu on the toolbars to have menus like the Bookmarks 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