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A custom user.js script to configure Firefox user, privacy and security settings.

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fboulnois/user.js

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Firefox user.js

A custom user.js script to configure Firefox user, privacy, and security settings. Supports Firefox 128+.

The goal is to make minimal changes to Firefox settings to enhance security and privacy without compromising on modern web features or making Firefox unstable or unsupported. Almost all of the settings configured by this script can be done through the Firefox settings and UI, so this script is a convenient time-saver.

This script can be used as a base for other user.js scripts.

Check the arkenfox/user.js repository for more information about user.js scripts.

Configured settings

A few user options are configured including setting Firefox as the default browser, hiding the bookmarks toolbar, and removing in-browser advertising.

Mozilla has increasingly relied on data collection to guide Firefox development and eroded user privacy in the process. For privacy, data collection is disabled from the following sources:

In addition, a few security settings are configured:

Installation

  1. Go to about:profiles in the address bar
  2. Open the Root Directory for the profile in use
  3. Copy user.js into the root folder (so that the directory hierarchy is <root>/user.js)
  4. Restart Firefox