Firefox 139 is finally here for you!
✨ New tab custom wallpaper
🈸 Full-page Translations within Firefox extension pages
🔎 Link previews under Firefox Labs
Learn more: https://t.co/Hkodv1vtSk
@CurtisBonety Hi Curtis, our team noted that we require some personal information when a donor makes an online donation for things like payment processing, receipts, fraud prevention, etc. If you have more questions about donating to the Mozilla Foundation, please visit https://t.co/rwCOT80ucn
@AakashRaut Hi, Firefox implements web standards for the certificates used to verify secure communication on the web. It would seem your server isn't sending a valid certificate, so you would have to speak to their support about this. - IH
@ChrisHG We hear you – Tab Groups shipped in v137 and Profile Management in v138 but both roll out progressively. To try them now, set browser.tabs.groups.enabled and identity.fxaccounts.handler to true in about:config. Thanks for your patience! -NG
Been waiting for Firefox Profile Management? This version update is for you!
✨ Firefox Profile Management
💳 Improved address and credit card autofill
Learn more: https://t.co/ndU9xL3DFH
@jansumi We’re aware of overheating & slowdown on Big Sur with video sites. Disable Hardware Acceleration (Preferences > General) & restart Firefox. If it’s still hot/sluggish, launch in Troubleshoot Mode to rule out add-ons. Make sure macOS & Firefox are updated -NG
@heatmarker Hello! In Firefox 138.0 for Android, Desktop mode is now enabled by default on large-screen devices
To return to mobile view:
1) Tap the ⋮ menu in the URL bar
2) Select Site settings
3) Toggle Desktop site off
We appreciate your feedback! -NG
@YMsabbag Tab grouping is rolling out gradually starting in Firefox 137! 🎉 It may take some time to reach all users, so keep an eye out for updates. Let us know what you think once it’s available to you! -NG
@SMSeddy Good news! Tab Groups just arrived in Firefox 138 on April 29 🎉. You can create, name, color-code & drag groups to organize tabs—no extensions needed. Update Firefox to try it out, and share your feedback. -NG
@malithmadhushan Thanks for the feedback! We’re exploring ways to streamline Profile Management in Firefox, aiming for one-click access and a more intuitive switcher—similar to Arc’s fast, seamless flow. Stay tuned for updates, and keep letting us know what features matter most! -NG
@seiyuu1119 Thanks for the update! Since everything’s up to date and no add-ons are installed, try launching Firefox in Troubleshoot Mode (from the Help menu) to see if it still happens. Let us know what you find! –NG
A new Firefox version just dropped! Firefox 137 is now ready for you.
🖋 Built-in signature in Firefox PDF viewer
🧮 Use address bar as a calculator
✨ Address bar refresh 2025
Learn more: https://t.co/H1iN3eIx4j
@CurtisBonety Sorry for the inconvenience! It sounds like there might be a sync issue. Please ensure both your desktop and mobile versions are fully updated. If the issue persists, try clearing the sync data and re-syncing your bookmarks. Let us know if that works!-NG