Downloading Mozilla developer toolbar
There is a very useful toolbar for web developers that can be installed into either Mozilla or Firebird. It gives direct access to validating pages and css, outlining various parts of your page, showing comments, alt tags, etc. It is invaluable to those writing and developing web pages. To download and install it (which is OK on PWF accounts) go to http://www.chrispederick.com/work/firefox/webdeveloper/ and select the required version. You'll need to restart your browser for it to be visible as a toolbar.