I’ve parked a trivial script at http://u-lazy-u.com/fbtest.htm. Here it is:

debugger;
alert(”Hello!”);
</script

With Script selected in Firebug 1.05 I can see fbtest.htm and set a breakpoint on the alert call. (Note the ‘debugger;’ above that, too!)

If I refresh with the toolbar button I see the Firebug portion of the window overlaid for an instant with “Firebug is disabled. This page cannot be displayed.” Then I see the alert pop-up.

If I click in the script code then Edit>Select All, look what I get on the clipboard — there’s that “Firebug is disabled” text but that text is not visible on the screen when I hit Select All!

—–
Firebug is disabled

This page can not be displayed.
1
2
3
4
5 debugger;
6 alert(”Hello!”);
7 </script
8
9
10
—-

I see the same behavior when loading fbtest.htm as local file — file:///c:/y/gcs/fbtest.htm.

One more thing: if I follow the directions in http://www.litfuel.net/pics/Firebug_AJAX_small.mov, the breakpoint example works.

I have been using it for long time and I don’t have that problem. Not only me. There are a lot of web developers who are really happy with firebug.