Study Internet Trends
What do you think the browser will be like in ten years?
Here is a quick screenshot of browser trends. As you can see Chrome seems to be gaining popularity. I personally switched to Chrome a few years ago after Internet Explorer took a dump. It is interesting to watch these trends, it gives you an idea as to the global market. Analyzing simple stats as in the screenshot can open a door of endless possibilities.
This link to W3School gives a look at browser trends all the way back to 2002.