Some of the leading web browsers have changed the way they operate recently. They still let you specify a home page, which will open up when you start the browser. But when you open a new tab, you get the browser's own choice of page rather than your specified home page.
The latest edition of Google Chrome, for example, is guilty of such behaviour, as are some versions of Firefox.
It's a subtle change, and you may not have noticed it. Or maybe your browser hasn't updated itself yet. But for many web users it's a definite annoyance.
Needless to say, add-ons have been developed to put things back the way they were. In the case of Chrome, it's called Replace New Tab Page. Just download and install the add-in, then go to the settings menu in your browser and click on Extensions, then look at the options page for the extension. You can now specify the page that will open in every new tab, and not just the first tab after you start up the browser.
Details of how to get the add-ins for all major browsers can be found at http://www.guidingtech.com/8004/have-new-tab-page-open-specific-website-firefox-chrome/