1. Explorer 10
1.1. Pros
1.1.1. 1. Amazing speed, minimalistic interface, pinned sites, improved web standard compliance, download manager with malware protection, tracking protection, H/W acceleration, good OS integration
1.1.2. 2. 2.Fast. Lean interface. Decent HTML5 support. Excellent tab implementation. Top security and privacy features. All the browsing tools you want. Pinned sites for custom browsing.
1.2. Cons
1.2.1. 1.v9 not compatible with XP, tab handling not as good as FF, no automatic restoration and extensive extension support, rebooting required after installation and long installation time, no bookmark syncing & themes, some site incompatibilities, 64 bit version less polished than 32 bit
1.2.2. 2. 2.Fast. Lean interface. Decent HTML5 support. Excellent tab implementation. Top security and privacy features. All the browsing tools you want. Pinned sites for custom browsing.
2. Opera 12.14
2.1. Pros
2.1.1. 1. Fast, feature rich, cross platform support, tab stacking, web standard compliant, built in mail & torrent client, extension & themes support, visual tabs & mouse gestures, Opera turbo, account syncing, tons of helpful features
2.1.2. 2. Minimal interface. Turbo feature makes slow connections even faster. Built-in mail and Bittorrent clients. Excellent HTML5 support. Syncing of bookmarks, settings, passwords, history, and more. Mac and Linux versions. Extensions. Live tiles on start page. Themes.
2.2. Cons
2.2.1. 1. Extension gallery not so extensive, no standard shortcut keys, no backing up from users or large organization
2.2.2. 2. Occasionally sites won't display properly, though this is getting rare. Hardware acceleration not enabled by default.
3. Marketshares
4. HTML5 Readiness
5. Definitions
5.1. Browser: software application for retrieving, presenting and traversing information resources on the World Wide Web.
5.2. Browser Extension:computer program that extends the functionality of a web browser in some way.
6. Chrome 27
6.1. Pros
6.1.1. 1. Extremely fast, clean, simple and intuitive interface, supports extensions, standards compliant, incognito browsing mode, account syncing, frequent & silent updates, built-in flash and pdf viewer.
6.1.2. 2. Leading support for HTML 5. Fast. Hardware acceleration. Excellent security. Instant site prediction and loading. Extensions. Syncing. Built-in Flash player and PDF reader. Spell checking.
6.2. Cons
6.2.1. 1.Requires an internet connection to install, interface is not much customizable, takes more HD space than Firefox and IE.
6.2.2. 2.Do Not Track privacy feature is buried and discouraged. Still some occasional minor site incompatibilities. Fonts occasionally jagged.
7. Mozilla Firefox 21
7.1. Pros
7.1.1. 1. Simplified interface, competitively fast, broad cross platform support, very secure, sync & panoramas, thousands of add-ons, excellent website compatibility, large developer community
7.1.2. 2. Clean, minimal interface. Fast performance. Innovative tab implementation. Highly customizable.
7.2. Cons
7.2.1. 1. Opera and Chrome still faster, need to restart browser after installing add-ons, fuzzy smaller fonts, memory hog in older computers, lacks popular audio & video codecs support
7.2.2. 2. Lacks client-side tracking protection like that found in IE9. Lacks Chrome's built in Flash and Instant page view. Slightly trails Chrome in HTML5 features.
8. Safari 5
8.1. Pros
8.1.1. 1. Elegant UI with Cover Flow, fast performance and browsing speed, fully web standards compliant, Safari Reader with Reading list, easy access to most visited pages, build in RSS reader, best for MAC OS.
8.1.2. 2. Reading view. Reading list. Cover flow and other beautiful interface elements. Built-in RSS reader. Good standards support. Good browsing speed. Fine tab implementation. Decent extension selection.
8.2. Cons
8.2.1. 1.Elegant UI with Cover Flow, fast performance and browsing speed, fully web standards compliant, Safari Reader with Reading list, easy access to most visited pages, build in RSS reader, best for MAC OS.
8.2.2. 2.Slow startup. Not being updated together with Mac version. No hardware acceleration for Windows.