$profile_dir/chrome/userChrome.css
/* Tab bar below Navigation & Bookmarks Toolbars For best results, show Title Bar or Menu Bar */
#nav-bar { /* main toolbar */ -moz-box-ordinal-group: 1 !important; border-top-width: 0 !important; }
#PersonalToolbar { /* bookmarks toolbar */ -moz-box-ordinal-group: 2 !important; }
#TabsToolbar { /* tab bar */ -moz-box-ordinal-group: 3 !important; }
I also prefer the old style menus so I re-enabled them with View->Toolbars->Menu Bar.Another quick tip: those big ugly spaces between the buttons and the address bar can be removed with a simple right click->remove on the empty space.
As many users rely on the functionality, they had to be added back.
You can configure them in Customize → Drag Space (on/off)
Bonus: You can resize any window on these same distros by 'Alt + Right Click'. It will allow you to resize along the closest border(s).
And the start of the URL contains security-critical information (http/-s and domain name), so having that closer to your eyeballs is generally helpful, even if it means cutting some of the URL off at the end. Especially so for average users which is ultimately the user group that's mainly going to be using the default.
/* Hide horizontal tabs at the top of the window #1349 */
#TabsToolbar {
visibility: collapse !important;
}
/* For only Tree Style Tab sidebar #1397 */
#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
display: none;
} #TabsToolbar, #sidebar-header {visibility: collapse !important;}
#TabsToolbar {margin-bottom: -21px !important;}
#nav-bar-customization-target {padding-left: 65px;}