Turn off the autosave function in WordPress.

After upgrading to WordPress 2.5.1, the editor kept auto-saving while writing, which was quite annoying, especially when using the education network with its already poor internet speed. This feature also consumes CPU time in the browser and frequently creates drafts with little content, causing the post ID to keep increasing. In fact, Lucifr had already made some adjustments to Firefox to avoid wasting effort. Therefore, Lucifr decided to disable this awkward feature (though it might still be considerate for some people).