Firefox Community Forum

Hi,

In Firefox on my M4 Mac Mini I have a number of tab groups that I always use. When on any tab within a tab group I cmd+tab to another application as normal, but when I cmd+tab back to Firefox, it takes me to a tab not in a tab group that was last open which, in my case, is an old tab that was last used a week ago. Moreover, it hides my tab groups altogether. This means that when I switch back from another application I cmd-tab to Firefox, click the top-right down arrow, select a tab group under Recent Tab Groups to get me back to my true last opened tab.

Cmd-tab is probably my most-used shortcut so this convoluted process of getting back to my true last tab is getting really frustrating. I have tried ticking "cmd+tab cycles through tab groups" in Settings but that's not what I am after. I've searched the forum and while I have come across similar posts, I haven't found a solution.

Any pointers gratefully received, thanks.

Dear Firefox China Team, After reinstalling Windows on 2025-07-22 and installing I signed in with the same Firefox Account (this one). Unfortunately: • No bookmarks, passwords, history or extensions were restored. • I believe “Sync” was enabled before the reinstall with all data types selected. • The UI only shows “Syncing…” but no data appears. Please help:

   Check whether any sync data exists for this UID.
   • If yes, explain why it is not downloading and provide recovery steps.
   • If no, supply official evidence (e.g., server-side log) showing zero data.
   If my data (bookmarks, logins.json/key4.db, form history, add-ons) is on your servers, kindly export it to me in an encrypted archive or provide a temporary secure download link.
   Advise how to prevent this “appears-to-be-synced but actually not” scenario in the future (mandatory manual backup, verification methods, etc.).

Troubleshooting already done: – Confirmed same account, same email. – Reset services.sync.* prefs to default. – Manually triggered sync; about:sync-log shows no error codes. – Created a fresh profile; still empty. Please reply at your earliest convenience so I can continue using Firefox with confidence. I am ready to provide Sync ID or any logs you need. Best regards,

After upgrading my 128 esr to 140 esr, some sites stopped opening. In regular versions, it has not opened for a long time. There are many such sites, for example, qwen3.app or temp-mail.io. It thinks for a long time and finally a message that the time has expired. Chromium is ok.

Today I went to TikTok, was using it earlier in the day also, when it showed me logged out and when I go to log in using my email, a windows security pop up shows, saying that I should insert my security key into the USB, something I don't have, and that this is being asked because of Firefox, which I can click cancel, but when I try to sign in with my email, I can't seem to, the password doesn't seem to be working, and can't sign in with the QR code through the phone which connects with the app. Still signed in just fine on Chrome and the app on my phone, so not sure what is up, as that shows my password should be fine due to neither of those logging me out if my password had been changed.

That I changed one thing yesterday related to something "secure", was that I enabled SecureBoot in BIOS, because games like Battlefield require it now for the anti-cheat and I'm curious if this has somehow affected this in some way as that's the only thing that changed recently for me.

Hi, Today 8-7-25 Mozilla automatically upgraded to version 141.0.3. Now all of my bookmarks are gone. I can't find them on my pc. There are two profiles listed in the profile section. Neither seem to have my bookmarks. I have a lot of bookmarks and some are very needed. Please help me recover all of my bookmarks. Thank you, Geo

Hello,

Why can't I view the form on this web page in Firefox?

https://share.hsforms.com/13FBJZIz0QWCpxhMQLNhncAdr9pb

I can see it in Chrome?

This happens occasionally on varying web sites and is a real pain.

Thanks, Bill

For whatever reason, Firefox is choosing to change the appearance of websites when they don't have a dark mode configuration on them. For context, I have Website Appearance and Themes set to Automatic so it'll respect my system settings, and my desktop is in dark mode at all times. If I change these settings to light it will render the page properly as expected, testing in Troubleshooting Mode doesn't change the behavior so it's not an extension thing, and Chrome (and other multiple other browsers) renders everything just fine. I've also tried playing with layout.css.prefers-color-scheme.content-override just in case (currently set to 2), but to no avail. I've also tried playing around with the contrast settings without any luck, either.

I've attached two screenshots of the LinkedIn login page from both Firefox and Chrome to show what I'm seeing. This just started happening maybe a month or so ago, and the only custom thing I've done to the Firefox theme is have it use Mica so it feels more native to Windows. I haven't ruled this out yet, but it doesn't feel like it should be related since this has nothing to do with light/dark system settings.

Appreciate any help :)

This is the message I receive when I try to sign in to my Adobe account online:

Hmm. We’re having trouble finding that site.

We can’t connect to the server at auth.services.adobe.com.

If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)

__________________________________________

How do I check that Firefox has permission to access this page? Or, what else do I need to do to sign in to my account?

Thank you!

Sudden occurrence: When selecting print PDF file, Firefox starts "preview" and does not complete the process. Dialog just keeps "spinning" and does not complete the action. Is there a reason and a fix?

Thank you.... Russ

How do I stop getting pop-ups on the lower rt of my screen, that's labelled Mozilla Firefox, & says Trojan Detected, & I think Sign Up for McAfee, etc ? I

I recently had to reinstall Windows 11, and I had all of my tabs sorted into tab groups. When I reinstalled firefox on the new OS, the tab groups don't show up after syncing. I can still see all my opened tabs, but they are not sorted by the tab group they were in. Is there any way to restore these without having to manually open each tab and regroup them?