''atnsop1 [[#question-1119470|said]]'' <blockquote> When I click the new tab button automatically a web opens...The name of the web page is (Television Fanatic)... I think when I was going to watch live cricket on my pc i downloaded it </blockquote>

Sounds like you may have a "Toolbar" piece of Malware installed, See this" https://www.techsupportall.com/how-to-remove-television-fanatic-toolbar-uninstall-help/ See '''Step 3:''' to see how to remove it from Firefox, specifically. But you need to follow the complete removal procedure otherwise that Toolbar may just reinstall itself when rebooting or launching Windows. See this [https://www.google.com/search?q=remove+Television+Fanatic&sourceid=mozilla-search&start=0&start=0&ie=utf-8&oe=utf-8num=100&gws_rd=ssl Google search] for other "how-to" articles for "remove Television Fanatic".