Firefox is my primary browser and has been since version 1 of the browser. Prior to Firefox I used SeaMonkey/Netscape going all the way back to Navigator 1.11. I’m glad to say that I have never used IE as my primary browser of choice, ever.
However I am concerned that Firefox’s days maybe numbered. Here are few facts.
Microsoft Develop IE
Google Develop Chrome
Apple Develop Safari.
Three major software corporations with lots of resources in terms of money and talented staff and all making money hand over fist. I’m not sure how the Mozilla Project can compete with them long-term, as much as I’d like them to. My argument is not technical nor based on merit or intellectual preference, it is commercial.
Prior to Chrome, Mozilla had the backing of Google as the major competitor to IE. I’m not suggesting that Google have or will abandon their cozy relationship with the Mozilla project, however their attention and resources are now divided, clearly they will try and make their Chrome browser and Chrome/Android OS’s work well.
JPWhite's Tech Blog 