Definitive list of UXP about:config Preferences

About

This page aims to offer a complete list of preferences currently available in the Unified XUL Platform.

Last updated: 12/6/18.

This page is under development !

Get involved

Use iceweasel-uxp, icedove-uxp, and/or iceape-uxp. Then provide descriptions and tips for your about:config preferences. Undocumented strings can also be searched in XREF.

Addons list

Preference Notes Values Type
advanced.mailftp True: Send the value of network.ftp.anonymous_password as the password for anonymous logins.
False: Send “mozilla@example.com” as the password for anonymous logins. (Default)
Boolean
bidi.browser.ui True: Activates bi-directional text interface and keyboard unconditionally.
False: Only activates bi-directional text interface and keyboard in bi-directional locales. (Default)
Boolean