What do you get when you combine a method for remote debugging Zend Server from the CLI and some creative javascript handling? This updated tool from Davey Shafik, a toolbar item for Firefox to link directly to the debugger on the Zend Server.

Simply drag this link to your Personal Toolbar: Debug in ZDE

Then, edit its link (Right click > Properties) and change the debug_host to your own IP (this link has it set for localhost). Your IP must be in the zend_debugger.allow_hosts php.ini setting for this to work.

The end result is that you can directly debug the page you're viewing without having to fool with going the long way around with the debugger.