Bug 1395596 - Avoid changing the bookmarks toolbar's height when entering customize mode and the toolar is non-empty. r=Gijs

MozReview-Commit-ID: KSCW3LkpZNA

--HG--
extra : rebase_source : 2c305031886ff32fb341d470bdc054336e855781

browser/themes/shared/browser.inc.css

@@ -49,10 +49,11 @@
   outline: 1px dashed;
   outline-offset: -3px;
   -moz-outline-radius: 2px;
+}
+
+#navigator-toolbox > toolbar[customizing]:not(#toolbar-menubar):not(#TabsToolbar):not(#nav-bar):empty {
   /* Avoid the toolbar having no height when there's no items in it */
   min-height: 22px;
-  /* There's no border in customize mode, so we don't need extra padding. */
-  padding-bottom: 0;
 }
 
 /* Library animation */