What's New in Firefox 145

Your Firefox has been updated.
What’s New | Firefox 145

A first look, 
just for you

As one of our loyal fans, you're among the first to see what we're bringing to Firefox. Thanks for being part of our journey.

Work smarter in every tab.

Stay organised with tabs that help you focus, built-in PDF comments, and seamless Sync.

Firefox sync

Stay in sync wherever you go.

Access your tabs, history, and passwords anywhere you sign in. Everything stays with you automatically.

Firefox tabs

Streamline your tabs.

Preview tab groups on hover, keep key tabs visible when groups are collapsed, and drag tabs right into groups without expanding them.

Updates making it easier than ever to stay organised and on task.

PDF Comments

Turn any PDF into a workspace for your ideas.

Add, edit, or delete comments — no extra tools needed.

Use the comment sidebar to scan all your notes and jump straight to what matters most.

In case you missed it: new ways to search, organise, and discover.

Explore the latest updates – from visual search and personal profiles to AI-powered results – all designed to make browsing faster, smarter and more personalised.

Profiles let you separate work, life and leisure.

Profiles help keep your online life organised. Use one for work and others for personal time, school, shopping or gaming.Each profile has its own extensions, themes and logins, so you remain private, organised and in control.

AI-powered answers, directly from your search bar

Perplexity is now a search option in Firefox. Ask your question and get cited results without switching tabs. Fast, intuitive, and your choice, every time.

One Firefox. Every device.

Scan to get Firefox Mobile and sync your tabs, history, passwords, and preferences — so you can browse your way, anywhere.

Keep up with all things Firefox

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