syshen's blog

Goog article: Migrate apps from Internet Explorer to Mozilla

It addresses some topics including:

1. General cross-browser coding tips
   
2. Differences between Mozilla and Internet Explorer
   
3. DOM differences
   
4. JavaScript differences
   
5. CSS differences
   
6. Quirks versus standards mode
   
7. Event differences
   
8. Rich text editing
   
9. XML differences
   

If you are interesting in writing a web based apps or AJAX like apps, it will be a good article for a reference.