You can disable the state-less empty tab if you set zen.urlbar.replace-newtab on disabled in about:config
Found in release notes 1.8b:
Added support for a state-less empty tab (only enabled if 'zen.urlbar.replace-newtab' is enabled)
You can disable the state-less empty tab if you set zen.urlbar.replace-newtab on disabled in about:config
Found in release notes 1.8b:
Added support for a state-less empty tab (only enabled if 'zen.urlbar.replace-newtab' is enabled)