how to set auto fill on yahoo mail


New Email
i m using mail service from yahoo from three years. It had provided auto fill till last month. But now it doesnt give this service.

I just want to set my username so that when i press initial of my id it give me option(s) to select from, BUT i dont want to save my password because i share my laptop. I am using google chrome.

So please let me know if this is possible or not.
Any help is good for me now.
thank u...