> ## Content Index
> Fetch the complete content index at: https://mfitzp.ghost.io/llms.txt
> Use this file to discover other available public pages before exploring further.

# Use GNOME Looking Glass for debugging
- URL: https://mfitzp.ghost.io/use-gnome-looking-glass-for-debugging/
- Published: 2011-11-03T00:00:00.000Z
- Updated: 2026-09-09T09:08:49.000Z
- Author: Martin Fitzpatrick
- Tags: Tutorials, #Import 2024-03-14 08:20, #Import 2026-08-24 14:26

Looking Glass is GNOME Shell's integrated inspector tool and JavaScript console useful for debugging.

Open the run prompt by pressing `Alt+F2`

Enter `lg` to start Looking Glass

Commands can be entered directly at the prompt e.g. `global.get_window_actors()`

![step/7348/Screenshot at 2012-05-03 20:15:22.png](https://storage.ghost.io/c/50/3e/503e92e5-9187-4058-a6fd-d37b3deb22ec/content/images/2026/09/image.png)

Exit at any time by pressing `Esc`