fix(toolbox) Copying with Ctrl+C toggles the chat. Fixes #9380

react/features/toolbox/components/web/Toolbox.js

                 enable: !this.props._chatOpen
             }));
 
+        // Checks if there was any text selected by the user.
+        // Used for when we press simultaneously keys for copying
+        // text messages from the chat board
+        if (window.getSelection().toString() !== '') {
+            return false;
+        }
+
         this._doToggleChat();
     }