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Chapter 9. Changing Preferences and Sett... > about:config, Firefox’s Configuratio...

about:config, Firefox’s Configuration Console

about:config is the most powerful way to set options, configuration settings, and preferences (let’s just use the term preferences from now on). It has a simple interface, has a search capability, and is capable of working with each of the preference data types.

It is an important feature of Firefox because it enables many preferences to be changed that might not easily be set. Certainly it lets you edit prefs.js (refer to Chapter 4, “Managing Profiles,” for more on prefs.js and user.js). However, about:config enables you to change settings while Firefox is running, right in the browser, making things much easier and more manageable.


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