A new year, a new MDN! π
If youβve accessed the MDN website today, you probably noticed that it looks quite different.
We've made some changes to create a clean and inviting website that makes navigating our content as easy as possible.
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Mozilla Developer 
@mozhacks
Official Mozilla account for people who make the web. Learn about web platform development and emerging technologies. Help:
Mozilla Developer π©πΎβπ»βs Tweets
Are you interested in a new HTML/DOM API for maps on the web? is conducting research and wants your input ππΎππΎ
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Mozilla Festival is a virtual celebration that unites tech activists from around the world. Packed with immersive technical focused sessions, we invite you to join us in supporting the movement towards a healthier internet.
Secure your #MozFest ticket now ‡οΈ
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In today's random Firefox code search find.
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π Version 100 is the browser Y2K
hacks.mozilla.org/2022/02/versio
From Karl Dubost, Chris Peterson, Ali Beyad via
and will soon reach version 100, and this three digit version number might break sites that incorrectly parse the browser version string.
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Linux: GTK3 overlay scrollbars are now enabled on Nightly, this can be turn on or off in the Settings bugzilla.mozilla.org/1147847
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We added support for search with or without diacritics in our PDF viewer. If you find bugs with this feature, please file them and mark them as blocking bugzilla.mozilla.org/1753509 thanks!
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Celebrating what makes you different is our jam (even if thatβs a giant red panda).
Thatβs why weβve teamed up with Disney and Pixarβs to help you show off your true colors β both online and off. #MyTrueColors #TurningRed
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Firefox and will reach version 100 in a couple of months. This has potential to cause breakage on sites that rely on identifying the browser version.Β
This post covers the strategies that Chrome and Firefox are taking to mitigate the impact.
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The Joy of Coding returns today with Episode 278 - come join me while I livehack on Firefox!
Today, I'm going to show how I debug Firefox's native code using lldb, gdb and Visual Studio. Let's get messy!
Starts at 1PM ET:
mikeconley.ca/joc/
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Before we roll outΒ State PartitioningΒ for all Firefox users, we intend to make a few privacy and ergonomic improvements to theΒ Storage Access API.
In this post, we detail a few of the new changes we made.
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Not Wordle, just my tabs:
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Remote learning software, like most software, can be biased.
Hereβs what happened one student, Amaya, used a test proctoring app to take her lab quiz. #AIBIas
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Work smarter π¬
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Must-see sporting events during work hours? No problem. Use multi picture-in-picture to pop out those videos β so you can check your work email and keep up with all the winners in real time.
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OK, this is slick as hell. Different exit server on the VPN for each container in Firefox.
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On January 13th, Firefox became unusable for close to two hours for users worldwide. This incident interrupted many peopleβs workflow. This post highlights the complex series of events that triggered a bug deep in the networking code of Firefox.
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We know y'all check your work in multiple browsers to make sure your website doesn't break for people.
We'll help you a bit in 98, adding a new Compatibility panel.
It will report possible CSS issues on your page β οΈ, using data under the hood
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Few weeks ago, I had a chat with β¦β© of β¦β©
We talked about how I started my Tech journey, my β¦β© endorsement, how I Co-founded β¦β© and how Nigeria π³π¬ can accelerate Digital Tech development.
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Oh wow! π π―
The Nightly version of includes a new "Compatibility" pane. DevTools scan the page and show CSS properties that aren't cross-browser supported yet. π²
Such a helpful little feature! π
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hackernoon: "WebAssembly and Fine-Grained Sandboxing in Firefox 95" by hackernoon.com/webassembly-an #wasm #webassembly
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β What do I love about the internet? The fact that I'm able to stay close to my family and friends during those hard times!
π§βπ» As a frontend developer, I also love to create products that have a meaning for the future.
π See you on the internet.
#Firefox #internetlovers
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In (98), you can disable event listeners for a given element using the Event Tooltip.
The "event" badge will have a distinct style when at least one event listener is disabled, to remind you that something was changed there π
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[Linux] Wayland was activated by default on Firefox Nightly (only) for eligible configurations last week. If you experience regressions, you may want to check bugzil.la/wayland. dependencies if your issue was already reported. If it is not, please file a new bug, thanks!
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Internet platform transparency (or lack there of it) dominated the headlines in 2021 π°
π
Join us to discuss next week with & .
β Ask questions now, or during the live stream, with #DialoguesandDebates
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If youβve ever built anything with web technologies, youβre probably familiar with MDN Web Docs.
MDN relies on contributors to help maintain its ever-expanding documentation. βπΎ
4 long time contributors share their experiences.
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I recorded my first ever FOSDEM talk yesterday! It's entitled "Firefox Desktop Development 101", and is a version of a talk I give to new Firefox staff to help them get their bearings.
It will stream live on February 5th! Lots of other good stuff too at:
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Current favorite thing to do on the internet
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Hey look there. Cascade Layers is now implemented in Firefox Nightly. caniuse.com/?search=cascad
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βPut the user first. User experience should trump developer convenience. Once you let that guide your work, youβre already halfway through to being a better developer than many others.β β
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If you want to be part of interactive workshops that teach you how to leverage your tech skills for social good, join the Trustworthy AI Space at #MozFest 2022!
Browse the Sneak Peek of upcoming sessions & start building out your must-attend-list!‡οΈ
bit.ly/3dKT8D9
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β¨ Ending the year on a high note:
I had the pleasure to chat with the folks and answer some questions about my work, front-end development, and also: birds! π₯ for their December issue of the "Hacks Decoded" series π€
hacks.mozilla.org/2021/12/hacks-
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"It is our responsibility as front-end developers and designers to ensure that what we create is inclusive of as many people as possible."
We chatted with @SaraSoueidan about front-end development, the importance of design and her appreciation of birds. hacks.mozilla.org/2021/12/hacks-
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"It is our responsibility as front-end developers and designers to ensure that what we create is inclusive of as many people as possible."
We chatted with about front-end development, the importance of design and her appreciation of birds.
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Hey Twitter Fam, I am restarting my journey to become a SWE and I am looking for a mentor to help me along my journey. Jan 10th is my start date for my boot camp, and I am in Atlanta, Ga. Who out there can help me, if that's you DM. I appreciate U
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"I had dial-up internet and spent huge amounts of time on MSN and MySpace... It was my connection to the rest of the world, all while in a small council flat in East London."
We spoke to founder of about tackling abuse online.
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Very cool! β€οΈβ€οΈ
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HUGE NEWS: We just made the first ever codable music video with @dojacat. You can control the story using code 
Go try it now at dojacode.com! #dojacode
Go try it now at dojacode.com! #dojacode
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