I have a confession most appropriately conveyed via Confession Bear: I use Internet Explorer. Let’s get this straight, I use IE 10. IE 10 is actually fast (some benchmarks say otherwise but I’m going by general usage compared with Firefox and Chrome.) Microsoft have come a long way with IE and if you hate IE and haven’t used 10, give it a shot. Microsoft is potentially one or two versions away from being a real competitor amongst geeks.
One thing it is sorely missing: extensions. It is possible to get some IE exensions, but they come as a downloadable executable and are basically programmed the same was as a plugin. Extensions and plugins are different! Not to mention that there really aren’t that many extensions.
A good start would be to support Greasemonkey scripts. Definitely not full blown extensions, but it would give a nice starting library to IE by leveraging 1000’s of existing scripts, and some of the higher end scripts rival some extensions. Given MS is so late to the game, if they were to make it as easy as possible to port scripts over from Chrome or Firefox (or both for that matter,) that would help get them back in the game.
If they added this, improved support for HTML5 and CSS in general (which they have already made heaps of improvements with) and allowed for synching settings across computers, it’d be back in the game.