I was so lucky when reaching this reputation point :)
Mainly focus on .NET (C#), program in all possible platforms using .NET technology: WPF for desktop development, ASP.NET MVC/Core for web development and Xamarin Forms for mobile development.
It's true that you have to spend your whole life just to learn everything about .NET not even other fields of programming, software development and information technology. Feeling buried in the colossal world of IT.
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For those who prefer the so-called FireFox (tested on v.33.0.2), just try this Flying flag effect to see how fast it is, also try that demo on Chrome, Opera and IE to see the difference.
Now it's time for webkit-based browsers SUCKing. So technically all the browsers suck their own problems. Here is the test demo showing that. This time, IE 11 and FireFox 31 pass the test while all webkit-based browsers (Google Chrome 38, Opera 25, Maxthon 4.4.1.5000) suck.