Frequent Topics
Explore the knowledge base.
Featured Articles
Mozilla Support rules and guidelines
Rules and guidelines for using the Mozilla Support site.
How does support localization work?
Learn how localization (l10n) - making content understandable for native speakers of a given language - works in SUMO and what type of content is localized.
Contributors guide on Firefox advanced customization with CSS
What you need to know about Firefox customization with the userChrome.css file and how to help users get more help or revert their changes.
Social Support - Guidelines
These are the guidelines on how to get started with the Mozilla Social Support Program. In 2017, there was a new program started in Mozilla Marketing that reached out to users on Social Media with the Brand accounts. These guidelines are a source of onboarding to the Social Support program.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.