You need Google Chrome 45 or greater installed.
You can download it here: https://play.google.com/store/apps/details?id=com.android.chrome
Why using chrome custom tabs?
* Smooth transition between apps.
* Pages load faster.
* You are automatically logged in to your websites and forms are autofilled.
* Your browsing experience is always secure!
Compared to Google Chrome?
Bubble is essentially loading a light weight version of chrome that is designed to load a single page quicker. You can always open it in Chrome of course from the menu.
How to use?
Set Bubble as the default browser.
More on chrome custom tabs : https://developer.chrome.com/multidevice/android/customtabs