Ticket #6671: 6671_2.patch

_source/plugins/floatpanel/plugin.js

@@ -319 +319 @@
                                 if ( this.visible && ( !this.onHide || this.onHide.call( this ) !== true ) )
                                 {
                                         this.hideChild();
+                                        // Blur previously focused element. (#6671)
+                                        CKEDITOR.env.gecko && this._.iframe.getFrameDocument().$.activeElement.blur();
                                         this.element.setStyle( 'display', 'none' );
                                         this.visible = 0;
                                         this.element.getFirst().removeCustomData( 'activePanel' );