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How to contribute to article localization
Learn how to translate SUMO articles in to your native language.
How to contribute to Mobile Support - Start here!
Learn how to help Firefox users on mobile platform (Google Play Store).
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.
File a bug report or feature request for Mozilla products
Learn where to report a bug or file a feature request for Firefox, Thunderbird and other Mozilla products.
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