Firefox, built-in debugger f10 - how to get rid of the top menu?

Question

Debugging

It is necessary to check the work of one script in firefox.
Windows platform fox - just downloaded.
When debugging, by pressing f10, along with the transition to the next line, the top menu pops up. How to get rid of it? Well this flour, not debug is obtained.
Z.Y. Google says that there are such problems on Linux, but there it is solved by rebuilding the browser. Am I the only lucky one who has a buggy on Windows?

Answer 1

Use Chrome Tools, it's a pleasure to work with it in the latest updates)

Answer 2

use firebug