[Nightly Blog] Eyedropper Quick Action, geckodriver 0.37, and Tighter File Permissions – These Weeks in Firefox: Issue 205 blog.nightly.mozilla.org/2026/06/22/e...

This is your periodic reminder that you can follow the general Mozilla news, team work and individual contributors work on Planet Mozilla (which has a RSS feed you can subscribe to). We have 1 to 2 blog posts per day for you. 🌍️ planet.mozilla.org

What's new in Firefox this June, and what's next on the Firefox roadmap blog.mozilla.org/en/firefox/f...

[Nightly Blog] Giving You More Control – These Weeks in Firefox: Issue 204 blog.nightly.mozilla.org/2026/06/15/g...

[Nightly Blog] More Kit, More Control – These Weeks in Firefox: Issue 203 blog.nightly.mozilla.org/2026/06/03/m...

The location permission icon in the address bar now turns red while a website is actively accessing your location, making it easier to notice when your location is being shared. bugzilla.mozilla.org/2038194

Quickly pick and copy a color from any page by typing "pick color", "color picker", or "eyedropper" in the address bar and selecting the "Pick a color" quick action.

Firefox now verifies and displays Qualified Website Authentication Certificates (QWACs) in accordance with eIDAS regulations. bugzilla.mozilla.org/2043399

[Nightly Blog] Backup for a Rainy Day – These Weeks in Firefox: Issue 202 blog.nightly.mozilla.org/2026/06/01/b...

Web Serial landed in Firefox 151! Here's how it works, and what you can do with it: hacks.mozilla.org/2026/05/web-...

Which of the following three CSS features would you prefer Firefox to support first? ❤️ your favorite in the thread:

The new JPEG XL image format support was activated today in Firefox Nightly bugzilla.mozilla.org/2040074

Firefox Labs can now be opened quickly by typing "labs" or "experiment" in the address bar and selecting the Open Firefox Labs quick action. bugzilla.mozilla.org/2023169 Screenshot of the Firefox Labs quick action being triggered from the address bar

You can now generate a QR code for a page from the tab context menu (Share -> Generate QR code). bugzilla.mozilla.org/1996422

[Nightly Blog] Settings Are Getting a New Look! blog.nightly.mozilla.org/2026/05/20/s...

"Behind the Scenes Hardening Firefox with Claude Mythos Preview" (hacks.mozilla.org/2026/05/behi...)

[Nightly Blog] Import-ant Updates – These Weeks in Firefox: Issue 201 blog.nightly.mozilla.org/2026/04/30/i...

[Nightly Blog] VPN, Split View, and Other Goodies – These Weeks in Firefox: Issue 200! blog.nightly.mozilla.org/2026/04/27/v...

[Nightly Blog] QR Codes, Speed Calculators, Better RAM Usage – These Weeks in Firefox: Issue 199 blog.nightly.mozilla.org/2026/04/15/q...

Firefox Developer Edition and Beta: Try out Mozilla's .rpm package! - Mozilla Hacks - the Web developer blog hacks.mozilla.org/2026/03/fire...

[Gecko] Competition, Innovation, and the Future of the Web - Why Independent Browser Engines Matter blog.mozilla.org/netpolicy/20... 🦎️

Firefox & Gtk Emoji picker – Martin Stransky's Blog mastransky.wordpress.com/2026/03/20/f...

[Nightly Blog] Extension Theming Improvements and More – These Weeks in Firefox: Issue 198 blog.nightly.mozilla.org/2026/03/20/e...

[Nightly Blog] Firefox Profiler Dark Mode and Updated Smart Window Prompts – These Weeks in Firefox: Issue 197 blog.nightly.mozilla.org/2026/03/17/f...

[Nightly Blog] AI Controls – These Weeks in Firefox: Issue 196 blog.nightly.mozilla.org/2026/03/10/a...

As a reminder, you can follow the general Mozilla news, team work and individual contributors work on Planet Mozilla (which has a RSS feed you can subscribe to). We have 1 to 2 blog posts per day on Planet. planet.mozilla.org

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

AI Controls are available in Firefox Nightly preferences! Documentation: support.mozilla.org/kb/firefox-a... If you find a bug, please report it on Bugzilla via this link: mzl.la/AIControlsFi... Thanks!

[Nightly Blog] Profile, search and wallpaper bug fixes plus more! – These Weeks in Firefox: Issue 195 blog.nightly.mozilla.org/2026/02/02/p...

AI Controls (formally 'kill switch') are landing in today's Firefox Nightly, and will land with Firefox 148 later this month.

[Nightly Blog] Take note – Split View is ready for testing! – These Weeks in Firefox: Issue 194 blog.nightly.mozilla.org/2026/01/26/t...

Brussels, here we come! 🦊🇧🇪 Mozilla will be at @fosdem.org next weekend. Swing by our stand to meet our staff and volunteers, and join the "Browser and Web Platform" devroom on Saturday! Track schedule: fosdem.org/2026/schedul...

Firefox & Linux in 2025 mastransky.wordpress.com/2026/01/23/f...

[Nightly Blog] Introducing Mozilla’s Firefox Nightly .rpm package for RPM based linux distributions! blog.nightly.mozilla.org/2026/01/19/i...

[Nightly Blog] Phasing Out the Older Version of Firefox Sidebar in 2026 blog.nightly.mozilla.org/2026/01/13/p...

[Nightly Blog] Closing out 2025 Strong – These Weeks in Firefox: Issue 193 blog.nightly.mozilla.org/2025/12/19/c...

[Nightly Blog] Getting Better Every Day – These Weeks in Firefox: Issue 192 blog.nightly.mozilla.org/2025/11/24/g...

The @firefoxdevtools.bsky.social JSON viewer got better in @firefoxnightly.bsky.social : the console offers access to the original json data via `$json`. This allows to easily manipulate the underlying data to get what you want

[Nightly Blog] Extensions UI Improvements and More – These Weeks in Firefox: Issue 191 blog.nightly.mozilla.org/2025/10/27/e...

[Nightly Blog] Smarter Search, Smoother Tools – These Weeks in Firefox: Issue 190 blog.nightly.mozilla.org/2025/10/06/s...

[Nightly Blog] Firefox 144 Highlights: Faster Add-ons, Smarter DevTools, and Tab Group Boosts – These Weeks in Firefox, Issue 189 blog.nightly.mozilla.org/2025/09/22/f...

[Nightly Blog] Add-ons, Fixes, and DevTools Snacks – These Weeks in Firefox: Issue 188 blog.nightly.mozilla.org/2025/09/19/a...

[Nightly Blog] Webcam previews and more! – These Weeks in Firefox: Issue 187 blog.nightly.mozilla.org/2025/09/12/w...

Mozilla - Ask a Fox event community.mozilla.org/campaigns/as...

Firefox Security & Privacy newsletter 2025 Q2 | Attack & Defense attackanddefense.dev/2025/07/17/f...

Fast, private and secure (pick three): Introducing CRLite in Firefox blog.mozilla.org/en/firefox/c...

[Nightly Blog] Custom Profile Avatars Arrive in Nightly – These Weeks in Firefox: Issue 186 blog.nightly.mozilla.org/2025/08/04/c...

[Nightly Blog] Copy Link to Highlight in Nightly – These Weeks in Firefox: Issue 185 blog.nightly.mozilla.org/2025/07/28/c...

Happy sysadmin day! xkcd.com/705/