Scirra has a lot of experience with working with HTML5 games. This tutorial summarises our advice on which browsers are best for running HTML5 games, especially those developed with Construct 2.
Scirra recommends either Google Chrome or Mozilla Firefox as the best desktop browsers for HTML5 games. They are approximately equal in features and performance. Most other browsers either perform worse or lack features that Chrome or Firefox have.
The best mobile browsers are: for iOS, Safari. Make sure you're on the latest version of iOS for best performance and features. For Android, Google Chrome again. Note on older Android devices Chrome is not the default browser and needs to be installed separately. In this case Chrome is so much better than the stock browser you should strongly recommend to your users that they make sure they use Chrome if on Android.
Most other mobile platforms, including Blackberry 10, Firefox OS and Windows 8 also provide fast and good quality built-in browsers.
Always test on as many browsers as you have access to. Not everyone uses the same browsers, and it is important to check your game's performance, appearance and features work correctly for everyone.
Unlock your full gamedev potential
Upgrade to the Personal Edition of Construct 2, it has way more features and won't holding back from making money and using your full creativity like the free edition does. It's a one off payment and all Construct 2 editor updates are free for life!
Plus, it's got a lot of additional features that will help you save time and make more impressive games!