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: mzl.la/4c6ms41

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Can you try switching profiles using this? mzl.la/3zOUSpg - IH

This would be a MalwareBytes issue not a Firefox issue. We don't try to control what your antivirus software does. - IH

Hi there, please report the extension via the menu on the add-on page. Thanks! -K

Hi there! Thanks for sharing your feedback. I'll make sure to forward this to our team. -K

Hi Jeffrey, which site are you referring to? Can you elaborate? -K

Hi Robi, Thanks for sharing your feedback. We'll make sure to share this feedback with our team. -K

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

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

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

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

Hola!

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

We hear you 😅 — it took time to get it right, but Profile Management is here and it’s just the start. -NG

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

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

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

Been waiting for Firefox Profile Management? This version update is for you! ✨ Firefox Profile Management 💳 Improved address and credit card autofill Learn more: mzl.la/3DPwABL

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