I dont use any.

That may fix the issue for dcrulz, since he is having a specific javascript error. I use Google popup blocker but I am allowing all popups for my xcart site, so it allows the console debugger to show. This probably isn't it.

The pop up debugger window works. The problem is the tpl guide in the bottom of the browser stops working. I personally find that to be the most useful portion of webmaster mode.

I am right with you. In webmaster mode, if I click on a $lng.xxx value, it pops up the editor to change the name of the language var, and if I click on a template in the console debugger, that works fine as well.

To me, the MAJOR issue (and I agree with you) is that the template guides that show in the status bar of Internet Explorer are no longer there. That was all I used it for. I never edited files using the X-Cart editor, I always did it by hand.

popups not an issue
 

I do have a pop-up blocker installed, but I have it set to allow popups on my x-cart site. The debug window does work as well.

I'm having the same issue where I can see text labels, but not template paths...