Can't get rid of Make Yahoo My Homepage screen

Question

I downloaded Avast & Malwarebytes, ran them, then deleted them. Avast downloaded Chrome automatically. I deleted that but It changed my homepage from Yahoo to something else. I got the homepage back to Yahoo but every time I call it up, another screen saying "To Make Yahoo Your Homepage Do This". I do what it says but the To Make page comes up every time Yahoo home page comes up. I tried redoing Firefox but that does not help. Assistance would be appreciated.

Answer 1

# Go to '''about:config''' page.
# Search for '''browser.startup.homepage''' change its value to:
#*'''about:home''' – default.
#*'''about:blank''' – blank page.
#*'''about:newtab''' – new tab page.
#*'''URL''' – an url of one page that you want.
# Or search for '''browser.startup.page''' change its value to:
#*'''0''' - start with a blank page (about:blank).
#*'''1''' - start with the web page(s) defined as the home page(s). (Default)
#*'''2''' - load the last visited page.
#*'''3''' - resume the previous browser session.
# Or [http://mzl.la/NdLLhT How to set the home page]
# See also:
#*[http://kb.mozillazine.org/About:config about:config]
#*[http://kb.mozillazine.org/Browser.startup.page]
# Also:
#*[http://mzl.la/MwuO4X Firefox in safe mode]
#*[http://mzl.la/MPPnpl Problems with malwares]
#*[http://mzl.la/Mt91fd Preferences not saved]
#*[http://kb.mozillazine.org/Preferences_not_saved Preferences not saved]
#*[http://mzl.la/LL5Dxl Manage profiles]