Ticket #5536: 5536.patch

_source/plugins/wysiwygarea/plugin.js

@@ -36 +36 @@
                         if ( checkReadOnly( selection ) )
                                 return;
 
-                        var data = evt.data;
+                        var range,
+                                data = evt.data;
                         this.fire( 'saveSnapshot' );
 
                         if ( this.dataProcessor )
@@ -60 +61 @@
                                         // (#6005), we need to make some checks and eventually
                                         // delete the selection first.
 
-                                        var range = selection.getRanges()[0],
+                                        range = selection.getRanges()[0],
                                                 endContainer = range && range.endContainer;
 
                                         if ( endContainer &&
@@ -82 +83 @@
                                 if ( selIsLocked )
                                         this.getSelection().lock();
                         }
+                        // Firefox breaks format when pasting using execCommand-inserthtml (#5536).
+                        else if ( CKEDITOR.env.gecko )
+                        {
+                                range = this.document.getSelection().getRanges()[ 0 ];
+                                // Clean selection.
+                                range.extractContents();
+                                var target = range.createBookmark().startNode;
+                                var container = new CKEDITOR.dom.element( 'div', this.document );
+                                container.setHtml( data );
+
+                                while( container.getChildCount() )
+                                        target.insertBeforeMe( container.getChild( 0 ) );
+
+                                target.remove();
+                        }
                         else
                                 this.document.$.execCommand( 'inserthtml', false, data );