Extension:SaferEdit

This is the wrong question here: SaferEdit will find you! It saves the article automatically while you are editing at predetermined intervals.

This allows you to leave an article you are editing without saving, and return to your work via a temporarily saved version. Upon return, a dialogue box will open, asking if you would like to take this action.

If you leave a page in the edit view without saving, a warning message is given. In addition, the page is marked as "under construction".