Mozilla Language Portal

Resources for localizers, by localizers

Find the Right Words, Instantly

Consistency is key in localization. Our searchable translation memories and terminology provide a reliable reference for translators, ensuring accuracy across Mozilla projects and beyond. Easily search, download, and integrate these resources into your workflow to maintain quality and coherence in every translation.

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Build for a Global Audience

Localization starts with great preparation. Our Best Practices section offers essential guidelines for developers and translators to create, manage, and optimize localizable content. Learn how to avoid common pitfalls, design with global users in mind, and build software that adapts seamlessly to different languages and cultures.

Explore best practices

Powerful Tools for Seamless Localization

Mozilla develops open-source localization technologies designed to streamline workflows and enhance translation efficiency. From cutting-edge automation to collaborative tools, explore how our innovations can support your localization efforts and be integrated into your own projects.

Discover the tools

The Latest Stories / View all

  • L10n Report: August Edition 2026

    Please note some of the information provided in this report may be subject to change as we are sometimes sharing information about projects that are still in early stages and …

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  • Firefox Release Changes and Localization

    As recently announced, Firefox will be moving from releasing every 4 weeks to every 2 weeks on both Firefox for Desktop and Firefox for Android. The goal is for bug …

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  • Giving Pontoon’s Editor Its Own Theme

    Each year, Mozilla welcomes interns who work alongside our engineering teams on projects that ship to production and improve the experience for contributors around the world. This year, Ayush joined …

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