Where did they move the toolbar items Space, Flexible Space, and Separator? They're missing, even on the screen shots on support pages: https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars I've grown accustomed to using toolbars on all four edges of the screen (see old screen shot). Please return my ability to space the buttons because they're useless all clumped together. I love Firefox's ability to be extended and customized but they keep breaking the basics -- If it ain't broke, don't fix it!