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How can I stop Firefox from automatic granting sites cross-site cookie permissions (see screenshot)? The problem is that the cross-site cookie(s) granted for a site more often than not is completely unrelated to that site. This problem is very frustrating.

I have tried changing several settings in Tracking Protection but nothing has stopped Firefox from auto-granting these permissions. I have for example turned off "Fix major site issues (recommended)" but it has not changed this behavior.

Thankful for any help.

8.24.2026 As of yesterday, Thunderbird Inbox new messages have no content showing. Today, a few new messages can through with a date stamp only-- no subject or sender info and no content when clicked on. Ran the Troubleshooter procedure in which all old Inbox messages vanished. Some slowly came back with subject/sender info but now their content is missing. Today, Spam folder held new messages w/subject/sender line and content showing. But still no new emails with/subject/sender and content. just a time stamp. What's going on?

Using Mac Airbook M4; iOS Sequoia 15.6.1

Please email me at: [redacted from community support forum] since Thunderbird email not working.

I share my Sync account across 1 Android + 3 desktop devices (Win 10 or 11). So far no problems. A few days ago all the devices started dropping out of Sync.

I would say this all started with the Android device (v.153), which seems to have logged out of the account on its own. After reconnecting it, all the desktop devices went nuts...

1) desktop machines will need to reconnect to Mozilla account every time FF is launched 2) about:logins is always empty, even after logging back in and completing a sync routine 3) even when it states "Account disconnected" - "Sync is off", they will still receive tabs sent from the Android device; they can't send tabs as they won't see the other devices. Also, even while disconnected, they were able to add a new bookmark to the account. So, account is not actually fully disconnected... only some parts of Sync are.

Another symptom. Account's Connected Services list is clean and up to date (see images). Account recognizes new logins as already known hardware and avoids doubling them. But in Sync there's a mess of instances... all new attempts are seen as a new device. Many of these are of course dead links, as the latest login overwrites previous ones.

This happened while desktops were updating to v.154, but I wouldn't say it's related to that, as two of those machines also run a different Mozilla account on a second profile, and so far that account is not misbehaving.

The Android device also got disconnected a few more times, but now it seems more stable than its siblings, and the passwords are still accessible (as as you can see in the pics, it's not showing as a doubled Sync device).

I didn't try signing off all devices because I'm worried I won't be able to get back in... anyway, manually signing off a single one didn't change anything.

It seems to me this is a server-side issue. Is there a way to "refresh" the account without losing all data? Thank you

I'm looking for a possibility to customize the font size of OUTGOING mails (not the incoming, these I could already change). For example, what term should I search for in the advanced settings?

In previous versions of the app, holding the back button on android would display the recent history foldout. Currently it's not working anymore. However I've found out that the "virtual" back button to the address bar that can be added from the settings has mantained the correct behaviour. Adding an image to better clear uo what I'm referring to.

Hello,

I recently had an issue where I accidentally closed Firefox in such a manner that it did not save my Tab Groups... Should that be possible?

I am trying to recall the steps to cause this to happen. At the time I had two Firefox windows open: one with all of my usual tabs, and one with a single tab open. I believe the steps were as follows...

1. Closed Firefox window with all of my usual tabs open
2. Closed Firefox window with the one tab open
3. Opened Firefox, and the session with one tab open came up
4. Closed that session
5. Opened Firefox again, one tab open
6. Checked the 'List all Tabs' - Recent tab groups, Show All - This was blank

I assumed that Tab Groups would survive sessions being closed like that like how Bookmarks do, am I wrong in that?

The Address / Profile Autofill (full-form, 1-click filling) all of a sudden stopped working a few days ago. Only single-form works. I have to go to each box on a form individually and click on it to have the info fill in (Never had to do that before). And the "History" icon is showing to the left side of every info of mine that i click on to fill in (Never seen that before). Everything in the settings is still the same, nothing on my end has changed. It's set to automatically fill in my Name, Address, E-mail, Phone Number in 1-click, like it has THOUSANDS OF TIMES BEFORE. All my info is showing in settings, but not on any forms on any websites. The same websites i've been using all along, that filled in ALL my info with 1 click, all of a sudden went to single individual form last week. I asked AI what the problem could be. It gave me a few suggestions and fixes. Tried all of them, made no difference. All the settings it had me check were correct. HELP! (Thank you)

Hello. There is no longer a Compose button by my folders on the main email screen. I can go up top to the Menu bar and click on Message, but there used to be a compose button right there on the page...how do I get this back?

I circled in yellow the area I thought there used to be a compose button,

I recently got a new laptop. The FIREFOX app on my new laptop doesn't have File Edit View Bookmarks Profiles Tools and Help on the very top. I can't find my bookmarks with the folders I created.

Last Friday August 21 2026 my Firefox was updated from version 153.0.4 to version 154.0. Ever since then i can't use any of the Azure functions needed to see dead-letters in our service bus explorer. When i try the same in edge or chrome i get a prompt to allow access to local device network. Firefox doesn't show the prompt. In my settings no websites are listed in the Permissions and data list. When i look at the site specific permissions (shield button -> show site information -> permissions) it is set to default prompt. Clearing cookies or accessing through a private window makes no difference. I need to give Azure access to local network otherwise it throws a web socket error whenever i try to peek at any of our service bus messages. Anyone any ideas?

For some scrollables, v153 doesn't respect the Mac OS setting to hide scrollbars unless scrolling on page load. If that OS setting is adjusted after the page is loaded, then the page respects it again until refresh, so there's apparently some sort of race condition going on where it's not reading the setting in time before the page loads?

This is not a problem in v152. I downgraded back to v152 and it's working again.

After updating Firefox to the latest version (154.0) a short while ago, Firefox now insists on adding a “Firefox” icon to my Start Menu every time I open it. I do not need or want this additional icon, as I already have all the Firefox icons I want in exactly the place(s) where I want them. I am not finding a toggle for this behavior anywhere in the Settings menu structure, although I might be overlooking it. Is there a way to stop this annoying behavior besides rolling back to version 153?

(I am running Windows 11 on a desktop PC with all updates installed, and Firefox is set as my default browser.)

I have just used a saved email address to write an email. When I went to send it the send failed because the from account was an old account I do not use anymore.

How do I change saved email addresses so they do not use the old account.

Why would this happen.

I checked which account I was using at the time and then repeated the process with the same result. I was using my current account.

I attempted to get into an account and my password did not appear. When I attempted to get into my password manager, it has disappeared completely and I have no access to that information

I have been using Thunderbird successfully for sometime and since yesterday there were no new emails in my inbox. This coincided with Thunderbird being upgraded, so I am told. So, I tested by sending an email to myself but TB kept assuming my old email address was valid (died last year) and any attempt to get in and edit my address failed because it kept thinking the old email was was still valid. So, I installed Betterbird, hoping it might work but it copied over my profile, etc and it had the same problem! I guess I could look far another email client but I want to stay with Thunderbird.

Any suggestions please. Robin