If you want to use Firebug with Firefox 3 on pages using client-side XSLT transformation, you’re out of luck. Firebug simply does not work; the only way to a half-working environment is the following:
- Restart the browser
- Open an XML page with the xml-stylesheet directive.
- Open a new tab and load a regular page into it.
- Switch back to the previous tab. Firebug works within the context of the currently loaded page.
What’s really sad is that this has been reported by one of the Firebug developers almost two years ago … and nobody found it important enough to change the bug status from NEW to anything else.