Hi,
I'm in a great fix and need your help. I'm using some javascript validation on one of my html forms. It's a register form. But the validation function behaves suspiciously. Sometimes it works, and sometimes not. I need to debug the javascript code. Please can you suggest a good, easy-to-use browser based javascript debugger for Firefox, Chrome or IE?

Thanks in advance!

Press F12 for the IE Developer tools (IE8 +)


FF Webdeveloper bar extension for Firefox

And Firefox has a built in error console and DOM inspector

If you are using Visual Studio or Visual Web Developer you can attach process to IE and set break point and step through the code.