How to Update the WYSIWYG Editor to the latest version
You should see a small smiling face of a monkey in the lower right corner of Firefox. That means Greasemonkey is installed correctly. If the monkey face is gray and not smiling, click the face to enable Greasemonkey.
While the file is displayed, go to Tools. Select "Install User Script". The script is already configured, so just click OK. Click OK when prompted to refresh the page.
Click the 'Reload' Button in Firefox to activate the editor.