Firebug page overview view

Firebug's official website announced that it has ceased further development, updates, and maintenance of Firebug, inviting everyone to use Firefox's built-in tools.DevTools。

Using Firebug's profiling feature, you can test the files that cause delayed loading on a web page.

By opening the page Firebug > Console > Profile.

You need to reload the page, then click "Profile" to view the page loading status.

firebug-Profileother extensions