Mozilla Festival 2025 is Nov 7-9 in Barcelona w/ 500+ session hosts, 200+ experiences, talks, labs, forums, film screenings, & installations.

Keynotes @xychelsea.tv @audreyt.org @ruha9.bsky.social

If you haven't gotten your festival badge, use code MOZSEHER 🎟️ @mozilla.org www.mozillafestival.org

Evidence of my #Firefox usage in 2009.
I was trying to explain Canadian winter weather to some Europeans.

The @mozilla.org Festival is all about re-imagining tech and building a more people-first digital world.

This year, it is happening in Barcelona — and if you are thinking of coming, use my code MOZFESTAMB for 25% off tickets (or 50% off if you have a group of five or more).

Firefox Sync?

If you see a website not working on #Firefox but working fine on other browsers, please report the website to Webcompat! 🐛
webcompat.com

How do you successfully execute a 2,500+ attendee festival that's community built and curated?

With volunteers, of course 🫶

The call is now open for volunteers to join the Mozilla Festival Barcelona team⤵️
mozillafoundation.tfaforms.net/176

I appreciate that many creative people have produced great works since, but the 1990's were a special time for music.

after extensive wind tunnel testing and analysis, I've concluded that airplane mode is a complete scam. it doesn't change the phone's aerodynamics in the slightest.

Open Maps, News and a travel booking site. You need to find a location far enough away that is currently not in the news and fast.

Do you have an open source project or start-up that you want to feature LIVE on the keynote stage at githubuniverse.com? I want to hear from you! Details here on how you can enter and maybe win a trip to San Francisco: gh.io/zerotomerged #ZeroToMergedContest

Not a super secret setup on my work laptop. You can contribute to open source software, too!
clarmso.ca/blog/2025/09...

Ever get the impression that the designs for the stores are actually unused product ideas..?

Hello world!

We're the Mozilla Data Collective - and we want to rebuild the #AI #data #ecosystem - with #communities at the centre.

🚫 Unconsented web scraping
🚫 Sign license deal with megacorp
✅ The Mozilla Data Collective

Launching Wednesday! 🚀 💫

datacollective.mozillafoundation.org

Sounds like a truly massive event, there must be a great atmosphere in the city when it is taking place. I have seen "quiet rooms" at events I am involved in and they are a great idea to help people decompress a bit.

A really great article, thank you for writing and sharing it - very well done!

What if the future of the internet relies on us unlearning the "truths" that are holding us back?

Introducing the voices of Mozilla Festival Barcelona's Main Stage🎉 📢

Join us and let's build something better 🧡
mzl.la/46lKPJU
#MozFest #Tech #Barcelona

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...

When I was contributing to Mozilla the other night:

Tabs - about five. Only what I needed.

Drink on desk - Nothing. Going up to get one from the kitchen gives me a break from the screen and made me stand up.

Music - Beethoven's Ninth.

So much work got done, would do again.

YouTube video by Star Wars Andor | Karis Nemik’s Manifesto | Disney+

youtu.be/-asb8zTiuZ4

Hope you have an amazing and productive time!

ONE WEEK TO GO!! 🥳🎉

The countdown to the Python Documentary premiere begins...

It's time to reshape the future of tech. Are you ready?
Join us in #Barcelona to build something better.
Grab your #MozillaFestival ticket now for €45.
mzl.la/gR9vL2

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

How Firefox speaks your language, with help from volunteer localizers around the world | The Mozilla Blog Before Firefox ever shows up on your screen in your language, from the menus to the messages to the welcome page, it passes through the hands of passionate

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...

Find tickets for #FIVARS #festival online, through July 19th.

Meet the creators, join live performances, experience spherical and #dome shows from your browser or #VR headset.

bit.ly/fivars2025tix

#xr #webxr #3d

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

The #FIVARS team at #VRTO2025 showcasing the world's best new #immersive #xr content.

The FIVARS Festival of International Virtual & Augmented Reality Stories, one of the longest-running solely #immersive #tech arts festivals in the world, kicks off in-person in #Toronto this week June 25-26, then continues with a partial catalog of live, virtual dome, #360video for two weeks. #xr

Firefox is built, localised and supported by very hard working contributors all over the world (most are outside of the USA).

#FIVARS is coming to #Toronto June 25th - 26th: #Festival of International Virtual & #AugmentedReality Stories is ready to take your breath away.

As a bonus it happens under the same roof as #VRTO conference, granting access to the Exhibits & 2nd stage talks!

Find tix at
bit.ly/fivars2025tix

#xr