How do I make a webpage compatible for both IE and firefox browsers?

Answer 1

Test the web page in Firefox. There is no hard and fast rule.
Mostly pages designed for IE viewing , work well in FF except
very few.
Switch to IE from FF ( use addon IETAB in FF)
https://addons.mozilla.org/en-US/firefox/addon/1419.
remove the bugs.
For example: ( in Tamil Language)http://www.dinakaran.co.in/epaperdinakaran/
Register with ID and password.
Try to open the photos in FF . javascript fails in FF _postback etc

Answer 2

This is a question that web designers have been trying to answer for years. Everyone has their own theories and methods that they use. I personally favor detecting the browser that the visitor is using and then directing them to a website designed specifically for that browser. It takes more time and requires you to design multiple pages, but if it means an optimized user experience...it could be worth it in the long run.

Answer 3

There is really no getting around installing Firefox, Mozilla, and IE, at least, and testing every page and every change on all three. Yes, there are web sites that will test your code. I don't know how accurately any of them are at testing your Javascript. Sorry, but I no longer have links to them.

Answer 4

Very difficult! IE is notorious for disagreeing with standards. One item that is very difficult is that IE measures CSS "width" as the width of margin plus border plus padding while all the others measure "width" as the stuff *inside* the margin, padding and border. There's other differences, too. Lots of books on the topic. If you're using CSS, try looking at the book, "CSS Hacks and Filters"

Answer 5

Use HTML and don't use any browser specific functions, or operating system specific tools such as "ActiveX". Design for Firefox first as the Microsoft browsers are not standards compliant.

Read this for more tips:

http://webdesign.about.com/od/internetexplorer/a/aa082906.htm