I recently came across one of the best web browsers I have ever seen, Lunascape. What sets this browser apart from the rest is that is can use any of the three browser engines available, Trident (Internet Explorer), Gecko (Firefox) and WebKit (Chrome/Safari).
Have you ever come across a web page that requires a function of different web browser? With Lunascape, you can switch browser engines on the fly.
With one click of the mouse, you can reload the web page in a different engine. Here's a list of current features from Lunascape's web site:
Unique All-in-One Approach
Triple Engine goes Triple Add-on
Lunascape is now compatible with the expanding array of Firefox add-ons in addition to the already supported Internet Explorer add-ons and Lunascape plug-ins, achieving the greatest degree of extensibility and flexibility among Web browsers. Transferring your add-ons from Firefox is very easy.
Extensible AND Fast
Lunascape6 achieves the utmost extensibility without compromising one of the fastest speeds in the market. You can browse lightning fast while enjoying ample add-ons. We've also made special effort in ensuring fast launch even with many add-ons.
Simply Refined Interface
A new interface mode, ORION, is added to version 6 as a default. This sleek minimalist interface has all the basic functions and will get you going in no time. You can still customize many aspects of interface to your liking.
Triple Engine Side-by-Side Display
Our unique Triple Engine keeps evolving. To better support web designers and developers, we have implemented "split tab display". You can view a web page in 3 rendering engines side-by-side to easily check the browser compatibility.
I encourage you to take a closer look at Lunascape at their web site.