@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);
/* The above line should appear only once in the file */

#TabsToolbar { -moz-box-ordinal-group: 99 !important }

I take it you meant move rather than remove. You can use any of the following add-ons. * https://addons.mozilla.org/firefox/addon/tabs-on-bottom/ * https://addons.mozilla.org/firefox/addon/fdgueux-tabs-on-bottom/ * https://addons.mozilla.org/firefox/addon/classicthemerestorer/ If you don't want to install an add-on, put the following style in the ''userChrome.css'' file and restart Firefox. You can use [https://addons.mozilla.org/firefox/addon/stylish/ the Stylish add-on] instead, if you have it installed. * http://kb.mozillazine.org/UserChrome.css ---- <pre><nowiki>@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul); /* The above line should appear only once in the file */ #TabsToolbar { -moz-box-ordinal-group: 99 !important }</nowiki></pre> ---- If you want more than placing the tabs on bottom, then only install Classic Theme Restorer and don't do anything else listed above. * https://addons.mozilla.org/firefox/addon/classicthemerestorer/ * [[How to make the new Firefox look like the old Firefox]]