30.12.2017 10:37
Launch the browser and click on More (⋮) → Settings (see pic. 1).
Then switch on Show home button in the Appearance section (see pic. 2).
Select Enter custom web address and fill this form using any the website you want (see pic. 3).
On Android, you can change the homepage by tapping on More (⋮) → Settings → Homepage → On → Open this page → type a website's address.