The Web changes at an impressive pace and either the developers rhythm: building a web site is largely done at the same time that it is published. For this reason, it is normal that many of the errors are reported when the project is online.
Then, FireBug is an add-on for Firefox that will be very useful, because it attaches to the browser and allows revising the code of a site in real time. This way, you do not have to look at it offline to learn about the nature of the problem.
FireBug is simple to use and serves its purpose with ease. Try it now.
Essential Requirements for Software Operation:
- Mozilla Firefox previously installed.