Does this thread help: *[https://support.mozilla.com/en-US/questions/839616 I upgraded to 5.0 but the I do not have the new browser features such as the single menu button top left] <-- clickable link --

In Firefox 4 and 5, the Firefox button that replaces the Menu Bar (''File, Edit, View, History, Bookmarks, Tools, Help'') is on by default only in Vista and Windows 7; '''Windows XP users''' must turn on the Firefox button. In XP you can turn on the Firefox button and turn off the Menu Bar is you wish by changing whether Menu Bar is checked or un-checked. *Note: Menu Bar checked = Menu Bar on, Firefox button off; un-checked = Menu Bar off, Firefox button on *using Menu Bar: click View > Toolbars > Menu Bar *using Firefox button: click Firefox button > Options > Menu Bar *keyboard shortcut: HOLD down the ALT key while pressing the keyboard letters VTM (repeating the keyboard shortcut will toggle Menu Bar on or off) "Tabs on Top" can be turned on or off (checked = tabs above toolbars; un-checked = tabs below toolbars as in version 3.6.x and prior). *using Menu Bar: click View > Toolbars > Tabs on Top *using Firefox button: click Firefox button > Options > Tabs on Top *keyboard shortcut: HOLD down the ALT key while pressing the keyboard letters VTT (repeating the keyboard shortcut will toggle Tabs on Top on or off) '''What other features are you not seeing?''' <br /> -------------------------- <br /> '''You need to update the following.''' The Plugin version(s) shown below was/were submitted with your question and is/are out of date. You should update to avoid known security issues with the version(s) you have installed. Click on "More system info..." to the right of your question to see what was included with your question. *Adobe Shockwave for Director Netscape plug-in, version 11.5.9.620 *Adobe PDF Plug-In For Firefox and Netscape 10.0.1 *Shockwave Flash 10.3 r181 ('''''may be up to date; version in Add-ons > Extensions should be 10.3.181.26 for newest version''''') *Next Generation Java Plug-in 1.6.0_25 for Mozilla browsers #'''''Check your plugin versions''''' on either of the following links': #*http://www.mozilla.com/en-US/plugincheck/ #*https://www-trunk.stage.mozilla.com/en-US/plugincheck/ #*'''Note: plugin check page does not have information on all plugin versions''' #*There are plugin specific testing links available from this page: #**http://kb.mozillazine.org/Testing_plugins #'''Update Shockwave for Director''' #*NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player. #*Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it). #*When the download is complete, exit Firefox (File > Exit) #*locate and double-click in the installer you just downloaded, let the install complete. #*Restart Firefox and check your plugins again. #*'''<u>Download link and more information</u>''': http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox #'''Update Adobe Reader (PDF plugin):''' #*From within your existing Adobe Reader ('''<u>if you have it already installed</u>'''): #**Open the Adobe Reader program from your Programs list #**Click Help > Check for Updates #**Follow the prompts for updating #**If this method works for you, skip the "Download complete installer" section below and proceed to "After the installation" below #*Download complete installer ('''if you do <u>NOT</u> have Adobe Reader installed'''): #**SAVE the installer to your hard drive (save to your Desktop so that you can find it after the download). Exit/Close Firefox. Run the installer you just downloaded. #**Use either of the links below: #***https://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox ''(click on "Installing and updating Adobe Reader")'' #***''<u>Also see Download link</u>''': http://get.adobe.com/reader/otherversions/ #*After the installation, start Firefox and check your version again. #'''Update the [[Managing the Flash plugin|Flash]] plugin''' to the latest version. #*Download and SAVE to your Desktop so you can find the installer later #*If you do not have the current version, click on the "Player Download Center" link on the "'''Download and information'''" or "'''Download Manual installers'''" below #*After download is complete, exit Firefox #*Click on the installer you just downloaded and install #**Windows 7 and Vista: may need to right-click the installer and choose "Run as Administrator" #*Start Firefox and check your version again or test the installation by going back to the download link below #*'''Download and information''': http://www.adobe.com/software/flash/about/ #**Use Firefox to go to the above site to update the Firefox plugin (will also install plugin for most other browsers; except IE) #**Use IE to go to the above site to update the IE ActiveX #*'''Download Manual installers'''. #**http://kb2.adobe.com/cps/191/tn_19166.html#main_ManualInstaller #**Note separate links for: #***Plugin for Firefox and most other browsers #***ActiveX for IE #'''Update the [[Java]] plugin''' to the latest version. #*Download site: http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE) #**'''''Be sure to <u>un-check the Yahoo Toolbar</u> option during the install if you do not want it installed. #*Also see "Manual Update" in this article to update from the Java Control Panel in Windows Control Panel: http://support.mozilla.com/en-US/kb/Using+the+Java+plugin+with+Firefox#Updates #* Removing old versions (if needed): http://www.java.com/en/download/faq/remove_olderversions.xml #* Remove multiple Java Console extensions (if needed): http://kb.mozillazine.org/Firefox_:_FAQs_:_Install_Java#Multiple_Java_Console_extensions #*Java Test: http://www.java.com/en/download/help/testvm.xml