Cannot open Firebug.

[dllyj86]

The Firebug is opened in my first page. When the window shows another page, Firebug is disappeared. It cannot be opened anymore.

[unbuglee]

This happends：

1. Firebug is injected in the page,which is mean,if the z-index of firebug is lower then one element of your page you wont see it again.

2. Firebug wont injected in your page util the page finished loaded.

3. Firebug is hosted in https://getfirebug.com/,if it cant be download you wont see it.

The web inspector is better then firebug,it is hosted in MIHTool and do more then firebug,please try it out :)