Home | Legacy Firefox Extensions | Content Policy | Contact

Always Default Client


Makes Firefox/Thunderbird as the default client on every startup.

You can control the behavior by following preferences:

// true => set default for all users on the computer (*require administrator permission)
user_pref("[email protected]", false);

// true => use Firefox for http, https, .xhtml, etc.
// false => use Firefox for http only
user_pref("[email protected]", false);

// 1 = Mail
// 2 = News
// 4 = Feed
// (1 + 2 + 4 = 7 = All)
user_pref("[email protected]", 1);

Download files:


This page is part of the LegacyCollector website.
Disclaimer: All material on this site is property of their respective owners and available under
open licenses to the best of our knowledge. If you are an author and would like anything removed,
then please write an e-mail to legacy [at] collector dot org.