How to Change the Language in Mozilla Firefox – Step-by-Step Guide + Tips

How to Change the Language in Mozilla Firefox

If you prefer to see Firefox menus, tooltips, or settings in a different language (for example, from German to English), just follow this simple guide.

Step-by-Step Guide

👉 Here’s the video tutorial on YouTube

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1. Open Firefox
Start your browser and open a regular window or a new tab.

2. Open Settings
Click on the menu icon (≡) in the top right corner. Then select “Settings” from the dropdown menu.

3. Open the General section
By default, you’ll land in the “General” section. If not, click “General” in the left-hand sidebar.

4. Find language settings
Scroll down until you see “Language and Appearance”. There you’ll find an option for the language of menus, messages, and notifications in Firefox.

5. Set alternative languages
Click on “Set Alternatives…”.

6. Add a new language
In the pop-up window, choose a language from the dropdown menu such as “English (US)” or “English (GB)”. Then click “Add”.

7. Move the language to the top
Select the new language and use the “Move Up” button to set it as your preferred language. You can also remove unwanted languages with “Remove”.

8. Confirm with OK
Once the list is arranged, confirm with “OK”. Firefox will ask you to restart the browser.

✅ Done! After restarting, Firefox will appear in the new language.

What is Mozilla Firefox?

  • Firefox is a free, open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation.
  • The first official release was Firefox 1.0 on November 9, 2004.

Who develops Firefox?

  • The core development is driven by the non-profit Mozilla Foundation, established in July 2003.
  • The Mozilla Corporation, a wholly owned subsidiary, handles daily development, releases, and partnerships.

How is Mozilla (Firefox) funded?

  • The majority of revenue comes from search engine partnerships, such as Google, which pays to be the default search in Firefox.
  • Additional income comes from donations, foundation grants, and occasionally government support for open internet projects.

Alternatives to Firefox

If you want to try or compare browsers, here are some options:

  • Google Chrome – the most popular, Chromium-based, often faster but less open.
  • Microsoft Edge – also Chromium-based, with excellent Windows integration.
  • Brave – strong focus on privacy, built-in ad blocker.
  • Opera – lightweight with many integrated features.
  • Vivaldi – highly customizable for power users.

Must-Have Firefox Add-ons (Quick Overview)

Add-onFunktion
uBlock OriginEfficient ad & tracker blocker, works even on YouTube.
I don’t Care About CookiesRemoves cookie banners and automatically rejects them.
Keepa (Price Tracker)Tracks Amazon product prices and shows price history.
NordVPN Proxy Extension (*)VPN plugin to protect data and access geo-restricted websites.
Raindrop.ioVisual bookmark manager, syncs across devices. Alternative to Pocket.
Watchmarker for YouTubeMarks already watched videos and syncs across devices.

(*) Affiliate Link

Useful Background Information

  • Market share: Firefox lost some ground to Chrome but remains popular with privacy-conscious users.
  • Quantum Update (2017): Major overhaul with improved performance, multiprocess architecture, and modern UI.
  • Release cycle: Since 2011, faster releases; since 2020, about every 4 weeks a new major version.
  • User loyalty: Despite plugin changes and competition, the Firefox community remains strong – many use it as a statement for open source and privacy.

Conclusion

With just a few clicks, you can change the interface language in Firefox – perfect if you want to practice English or work in an international environment. At the same time, Firefox remains a fascinating, privacy-focused project with a long history, built by talented developers worldwide and supported by partnerships and community contributions.

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