This script applies to browsers and mail programs or other programs using the Gecko rendering engine from the Mozilla® open source project. Applications built upon the Mozilla/Gecko code-base range over the widely acknowledged core products – particularly Firefox® and Thunderbird™ – and a lot of other applications more or less well-known.
MOZILLA and FIREFOX are registered trademarks of the Mozilla Foundation. THUNDERBIRD is a trademark of the Mozilla Foundation.
The configuration of Gecko applications is to a great extent ruled by pref
settings
in the prefs.js file. That file is handled internally by the program. The settings therein are dependent
on and will be over-ridden by user_pref
settings in the user.js file. That file is not part
of the program by default and must therefore be created by the admin or the end-user. Here is the place and now
is the time to create this file ;-)
The user.js file itself is a simple ascii-text file and can be created and edited by use of any text
editor. The Reconfiguration Script is used to fill the file with the necessary (re-)configuration
commands: the at most 100 user_pref
’s – i.e. preferences settings, which will give
you as an admin or end-user power control over the browser and/or mail program.
After generating the code, press the Select it
button, copy the code and paste it into an empty file.
Save the file as user.js
to the same directory/folder as the prefs.js file. To locate
prefs.js you would need to locate the profile folder on the disk. Guides for that purpose exist for
Firefox users and Thunderbird users and there are also more general
instructions.
Well, you’re done :-) Restart the browser or the email program and prefs.js will incorporate the new or changed settings from the user.js, and the program adjusts itself accordingly.