AI controls are now live in Firefox 148. A single place to manage, customize, or completely block AI features in the browser. See how it works here ⬇️ blog.mozilla.org/en/firefox/h...

It's a great day to add a little fire to your browsing 🔥 Import your bookmarks, passwords, history, and tabs in just a few clicks. blog.mozilla.org/en/firefox/h...

Here's a quick rundown of what we delivered as part of Interop 2025, and what's planned for Interop 2026!

When you accidentally close a tab, simply use cmd/ctrl+shift+t to reopen it but let’s be honest... do you really NEED all of them?

We love to see it 🔥🦊

Big news for the open web 🔥 we were the most downloaded app on Flathub in 2025, ahead of Chrome. Thank you for continuing to choose Firefox. flathub.org/en-GB/year-i...

Exactly. We know not everyone wants AI, which is why our approach is different. Firefox is not becoming an AI browser. Features are optional, clearly labeled, and fully under your control with a total opt-out coming early next year. It won't please everyone but we believe you deserve choice.

Not to brag but Firefox on Android is fully loaded: sync, privacy, hundreds of extensions, customization, and more 🔥

Pro tip: Type @tabs or @bookmarks right in the address bar to find what you need without breaking focus

Websites can often track you even with cookies blocked. We just made that a lot harder. See how👇 blog.mozilla.org/en/firefox/f...

Out-of-order HTML patching, another proposal from TPAC, lets HTML be presented non-linearly, and a single file can update multiple parts of the page. Would this feature be useful to you?

Pro tip: stop hunting for the tab you always need. pin it and move on.

I am switching over my browser from Chrome to @firefox.com. I will not take questions at this time. Thank you for your attention to this matter.

Here’s a step by step guide on how to block 3rd-party trackers automatically: Open Firefox. Done.

✅ Pumpkin carved ✅ Privacy protected ✅ 4th mini candy bar consumed It’s time to get spooky 🎃

you all have a looooot to say about us 😅 so instead of leaving comments here... how about migrating to Mozilla connect where your feedback will go a lot further connect.mozilla.org

We’ve been working to make encrypted DNS as fast as it is private. This year we hit that goal: DoH lookups are now 61% faster and within milliseconds of native DNS (plus, it’s finally available on Android) Full breakdown → blog.mozilla.org/en/firefox/d...

Your work life shouldn’t collide with your weekend plans. Profiles are here to help you keep every part of your online world separate and private, so you can focus on what matters. blog.mozilla.org/en/firefox/p...

You asked for better tab groups and profile management, so we built it ✔️ Check out Firefox 144 now with stronger encryption for Password Manager and smoother Picture-in-Picture. www.firefox.com/en-US/firefo...

Guess the Firefox feature: 🔄📱💻🤝

It's starting soon! Drop in your questions 👇

Got a burning question about us? Join our upcoming AMA with the Firefox leadership team on 10/6 🔥 Ask (nicely!) about privacy, performance, and the future of the open web to hear directly from the team shaping what’s next. www.reddit.com/r/firefox/co...

Firefox 143 is here, check out what's new: ✔️ Drag tabs to pin them. Simple, effective. ✔️ Camera preview in permission dialog. No more guesswork. ✔️ Stronger Fingerprinting Protection. ✔️ Smarter Private Browsing downloads (decide to keep or auto-delete). www.firefox.com/en-US/firefo...

Interop 2026 is now open for proposals! This is your chance to tell browser-makers which well-defined, well-tested features you wish had better support across browsers. ⬇️ Here's how ⬇️ github.com/web-platform...

Forget about tab > remember tab > close tab > regret closing tab > reopen tab with cmd/ctrl+shift+t > repeat

if you don't have at least 3 random beverages on your desk and 36+ open tabs with no memory of having opened them, are you even browsing?

Imagine a world where there's only one brand of car. Yeah... not great. That’s basically what’s happening with your browser. Let’s do a deep dive 👇1/7

Yay! It's the first Firefox release since I've joined the team, so let's take a look at some of the new developer-facing features in Firefox 142… 🧵

Firefox 142 is out. Still not the answer to life, the universe, and everything… …but it will fix your tab groups 😌

Who do you trust outside the algorithm? For Substack writer and internet decoder Ochuko, the answer is simple: her group chats. Today’s #dailydefiance challenge: Check your chats before your feed 👀 mozillasidebar.substack.com/p/gen-z-algo...

Most people just use the browser that came with their device but hear us out… What if you didn’t ? This month we'll be posting about small acts of daily defiance that help us take back control. Share yours with #dailydefiance and we'll RP our faves 🔥

@firefox.com send tab to device feature is so very useful. For example: get a text message on phone with link to "follow my delivery" UPS tracking. Open link on mobile firefox, hit share, and send to desktop instance of firefox. Kudos to firefox team for that one!

it's your friendly neighborhood internet fox reminding you that adblockers still work over here 🔥

Our idea of fun: open-source everything and curling up around a globe

"you look happier." thanks, we stopped accepting the default and life has never been better 🔥

"what's your favorite horror movie?" oh we don't know, maybe when we had 89 open tabs and we couldn't find which one was playing audio 😭

firefox 141 tabs sort themselves address bar knows math linux builds less hungry autofill expanded to 🇧🇷 🇪🇸 🇯🇵 just browser

"why can't you concentrate?" maybe because our nervous system is in a group chat with 14 browser tabs and 3 slack channels 🫠 blog.mozilla.org/en/firefox/m...

Hey Bluesky friends, what kind of content would you like to see more of on our page? 🤔

Pro tip: if you’re using vertical tabs, turn on “expand sidebar on hover” you're welcome

Bet you didn't know that we speak over 400 languages 😌 all thanks to thousands of volunteer localizers around the world who make Firefox feel like home blog.mozilla.org/en/firefox/f...

Accidentally opened the same tab 7 times? Right-click any tab → choose "close duplicate tab" and boom 🔥

🤖 Not that I would want a AI-chatbot inside the browser, but I am very thankful atleast they would let me pick what service I would like. More companies would adopt this strategy if they where consumer first. Thanks @firefox.com

Multi account containers for the win because mixing work tabs with 3am rabbit-hole browsing tabs is a recipe for disaster 😅

New week, new Firefox theme. Head over to tools → add-ons & themes → choose a theme that matches your mood 🔥

We're not saying we opened 6 tabs for flights and snacks while writing this blog... but we're also not not saying that 😅https://blog.mozilla.org/en/firefox/travel-features/

New Firefox alert! • Resize pinned vertical tabs for a cleaner, quicker view • Hide the extensions shortcut for a cleaner toolbar. Still accessible via the menu. • Unload tabs by right-clicking to free up memory & boost performance 📄 Full release notes www.mozilla.org/en-US/firefo...