Disabling Java and can't use Yahoo mail in Chrome or Firefox

Avast Free Antivirus / Premium Security
1

As the title says, what do? Saying to use previous version of yahoo but keep getting the same message.

2

I have removed Java in Firefox, Google Chrome, and IE and have no problem using Yahoo mail. I am using the latest version of Yahoo mail.

3

I don’t have a Yahoo Mail account, but I didn’t note any Java on starting the signup process for an account. Are you confusing JavaScript for Java?

http://kb.mozillazine.org/JavaScript_is_not_Java