Clear your browser's cookies. Quit and then restart your browser. Use a different supported web browser. Try logging into a different sign-in page, like our primary login page or the Yahoo Mail sign-in page.
How do I get my Yahoo Mail to open?
- Click Sign in at the top of any Yahoo page.
- Enter your Yahoo ID. - Optionally, select Stay signed in to let your browser to keep you logged in.
- Click Next.
- Enter your password, then click Sign in.