Firefox: Incentive for Open Source

Here are my reasons to move towards Firefox.
1. IE is one of the most targetted software for coders with malicious intent.
2. I like the basic idea of community developed software.
3. My first browser was Netscape - so, I am back to the netscape code.
4. I LOVE tabbed browsing.
5. I have better control over the access control and popups.
6. I use 2 extensions (webdeveloper & UserAgent Switcher) for my professional use.
7. I intend to combine firefox and apache - so that I get an easily portable GUI program for which many other support software is available.
Downsides:
1. Many sites of my interest are not supporting firefox.