Thunderbird about:config

Thunderbird, the email client from Mozilla stores its preferences the
same way as the Firefox browser.
In Firefox, if you want to change advanced configuration settings, you
can get to this page, by typing in about:config into the address bar.

So how do you do that in Thunderbird which has no 'address bar' ?
Some research on Google found me the answer:

Thunderbird's about:config can be reached by navigating as follows.

1. Open Thunderbird,
2. Goto Tools>Options>Advanced>General
3. At the bottom of this tab, is an entry that says "Advanced
Configuration" and has a button to the right called "Config Editor".
4. Click on Config Editor to launch the Thunderbird editon of about:config