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What’s New | Firefox 147

Start the year with Firefox as your main browser

Move through the web with less friction and more control.

Make Firefox your default

Extensions to start the year your way

Handpicked by the Firefox team, these staff favorites — spanning privacy, productivity, and style — help you personalize your browser and stay focused.

Explore extensions
Firefox browser toolbar showing the Extensions menu opened from the puzzle icon, displaying installed add-ons including Privacy Badger, Adaptive Tab Bar Color, and LanguageTool.
Illustration showing a hand holding a keyring with a physical key and colorful icons, including the Firefox logo, password symbols, a clock, and a star, representing security and helpful browser features.

Back up your Firefox — now on Windows 10

Automatically protect your bookmarks, passwords and history. Your data is safely stored on-device or in the cloud, ready whenever you need to move or reinstall Firefox.

Get started

What's new in Firefox Mobile

Illustration showing a mobile webpage with a translation toolbar, alongside a QR code with the Firefox logo, suggesting translation or language access on mobile.

Fast, private translations — right on your device

Firefox for Android Firefox for iOS Translations

Read the web in another language, without sending pages to the cloud. No extra steps, no tracking — just safe, instant translations wherever you browse.

Scan to install
Start using private, on-device translations in seconds.

See all that’s new
See Full Release Notes

Recent improvements

A quick look at recent updates like easier tab management, a more flexible PDF viewer, and our 2025 highlights.

Illustration showing browser tab groups labeled ‘Recipes’ and ‘Paris Trip,’ with the ‘Recipes’ group selected and a dropdown list of food-related pages.

Tame your tabs

Drag tabs into groups without expanding them, keep key tabs visible when groups are collapsed, and hover to preview groups — tab chaos, controlled.

Learn more
Illustration of the Firefox PDF viewer with annotation tools visible, a comment tool selected, and a highlighted text area being edited.

Make PDFs work for you

Comment, edit and clean things up right in Firefox — no extra tools needed. Use the sidebar to scan notes and jump to what matters.

Learn more
Illustration titled ‘2025 Firefox recap’ with a play button and cursor, surrounded by browser-style icons representing search, media playback, privacy, and security features.

Firefox 2025 highlights

Take a look at key updates from last year — and how we're carrying that momentum straight into this year.

Watch the video

Keep up with all things Firefox

Get how-tos, advice and news to make your Firefox experience work best for you.