Advanced users prefer to configure browsers mannualy. Firefox and Chrome, offers a set of hidden parameters for tweaking the browser about:config. But how do you know which flags you have changed, and what is the default?
This is autotranslated version of this post.
It is very easy. Open the page
about:config and accept the risks. Click Show all.
Open the developer console using hot keys
Ctrl+Shift+K (on macOS
Command+Option+K). In the console write the
enable box and press Enter.
This will enable you to use CTRL+V. Paste the following code:
var elments = document.getElementsByTagName('tr');
el => !el.classList.contains('has-user-value')
el => el.style.display = (el.style.display === 'none') ? 'table-row' : 'none'
Now displays only those settings that you have changed.