Browsers 2012
Explorer 9
2. Only works in Windows 7 and Vista.
1. Behind other browsers in HTML5 support.
2.. Pinned tabs make sites like apps in Windows 7.
1. Many security features.
Mozilla Fire Fox 16.02
2. Lacks Chrome's built in Flash, PDF reader, and Instant page view.
1. Lacks client-side tracking protection like that found in IE9
2. Independent from large vendor.
1. Fast performance
Google Chrome 23
2. Still some occational minor site incompatibilities.
2. Do Not Track privacy feature is buried and discouraged.
2. Instant site prediction and loading.
1. Leading support for HTML 5
Marketshare
Opera 12.10
2. Hardware acceleration not enabled by default.
1. Occasionally sites won't display properly, though this is getting rare.
2. Excellent HTML5 support.
1. Built-in mail and Bittorrent clients.
Apple Safari 5
Cons
2. No hardware acceleration for Windows.
1. Slow startup.
Pros
2. Apple Safari is the fastest browser worldwide.
1. Apple Inc. (NASDAQ:AAPL) announced the availability of Safari 4 on both Macs and Windows PC systems today.
http://download.cnet.com/Apple-Safari/3000-2356_4-10697481.html
Define: HTML5
HTML5 is a markup language for structuring and presenting content for the World Wide Web and a core technology of the Internet.
http://en.wikipedia.org/wiki/HTML5
Define: Browser extensions (plugins)