Polarity Browser is an up and coming free web browser app available for multiple platforms. It integrates Google's Chromium and Microsoft's Trident rendering engines in one browser, an amazing feat that grants widespread compatibility. It's highly customizable, too, with themes and extensions. It even provides a few cute ways to reduce energy consumption!
A safe bet
Let's get one thing out of the way: Polarity Browser is safe to use. Though false positives have said otherwise, many reliable sources report that the web browser is clean as a whistle, and so do we. Now that that's out of the way, here's what's important. You can browse virtually any web page and use virtually any applet with Polarity. You can do so fairly easily, once you learn the browser, although its interface does differ a bit from Chrome and others. You can even use many Chrome extensions, though not all.
A worthy alternative
If none of the features above sell you on Polarity Browser, it may not be your cup of tea, although trying it is a very simple matter (as with any web browser). But if you want a web browser that's free of clutter and provides an interesting and functional alternative, Polarity is one of the best new options out there.