Websites
Mozilla web sites
The goal with this page is to compile an exhaustive list of all official and publicly-accessible Mozilla web sites, grouped by function.
Key public web sites
The mothership: http://www.mozilla.com/ : Official source for Firefox / Thunderbird downloads
The other mothership: http://www.mozilla.org : Mozilla Foundation site
Mozilla Addons: http://addons.mozilla.org/ :
Mozilla Wiki: http://wiki.mozilla.org/ :
Mozilla Developer Center: http://developer.mozilla.com/ :
Bugzilla: http://bugzilla.mozilla.org/ : Bug tracking for all Mozilla products
Source code cross-reference: http://mxr.mozilla.org/
Tinderbox: http://tinderbox.mozilla.org/ :
Crash Reporting stats: http://crash-stats.mozilla.com/ : Centralized depot for all submitted crashes
Mozilla Labs: http://labs.mozilla.com/ : Home of Mozilla-related experimentation and mad science
Quality Assurance: http://quality.mozilla.org : QA community site
Marketing / PR / Evangelism
Spread Firefox: http://www.spreadfirefox.com/ :
Planet Mozilla: http://planet.mozilla.org/ : Aggregates mozilla-related feeds from across the web
Main Mozilla marketing weblog: http://blog.mozilla.com/
Webdev weblog: http://blog.mozilla.com/webdev : Official weblog for all things webdev
SUMO: http://support.mozilla.com : User support site, knowledgebase, chat, etc.