How do I set yahoo as my default home page?

If u r using google chrome. U have to look for a figure like three dashes right below the close app button or in the top right corner, Now select settings >> and then on the ON STARTUP panel, make sure that u have marked "open a specific page or a set of pages " then right beside it u can see the "set pages" command. Click on it and it will give you the option to add a new page. And then type www.yahoo.com in your select page box. And then click okay. I don't know about firefox so, sorry about that. U might want to wait for more answers about firefox. Goodluck