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For a couple of days now Instagram linked videos won't play here. Actually some of them will -- my own reels and anything linked with that button that looks like a movie 'clapper'. But videos that show the triangular arrow pointing to the right, nothing happens when you click. Not sure if this is a FF issue or maybe something changed at Instagram. Did a google search and nothing came up.

Dramatic change in version 11.0: It's hard to distinguish read vs unread using system theme with android 15 dark mode. It's almost as difficult to distinguish selected vs not selected. This was fine until the last update.

Thanks

Instead of taking me to a blank search page clicking on the plus symbol takes me to the home page of BBC News. I find this very annoying. How do I stop it happening?

Hi, perhaps my problem is not that unusual, but I'm finding it a bit difficult to solve. I have three email accounts on Thunderbird, and all of them have exactly the same specifications. They are all @hotmail.com. They have the same server name (outlook.office365.com), same port number, same connection security, same authentication method (0Auth2) and same Imap default release code. Never had a problem. Then on July 10th just one of them stopped opening and a message window appeared saying that authentication was OK but it wasn't able to connect. The other two continue to open as before. Any idea on how to rectify this, please.

No new messages after opening Thunderbird

Since yesterday (24/07/2025), when I open Thunderbird, I don't see new messages. I can see the number of new messages, but no new headers. I didn't have this problem before. When I access my account through a browser, there are new messages that Thunderbird doesn't see. I have version 140.1.0. I have the message threads enabled - All.

Polish/Polski Brak nowych wiadomości po otwarciu Thunderbirda Od wczoraj (24-07-2025) po otwarciu Thunderbird - nie widzę nowych wiadomości, widać liczbę nowych wiadomości, ale brak nowych nagłówków. Wcześniej nie miałem tego problemu. Jak wchodzę na konto przez przeglądarkę, są tam nowe wiadomości, które nie widzi Thunderbird. Mam wersję 140.1.0. Mam włączone odnośnie wiadomości - Wątki - Wszystkie.

i have daily repeat tasks created several years ago. Their notification used to work fine.

Since version 140.1.0esr those tasks notification stopped working. I deleted them and recreated them in a new calendar. Notifications worked for 1 day and then stopped.

Does anyone else have this problem ?

Thanks

i've been using thunderbird email for years now & have a recent problem (maybe the last 8-10 months? where i send an email & then someone replies & then i reply back to them & etc etc etc & every time i go to open 1 of the emails in the thread all the emails are displayed across the screen but separately, i hate this, i want each of my emails send & each of my emails rec'd treated separate!!! they used to be but i don't know what's changed & i've used all my limited experience trying to find a setting that i can change to fix this?? any ideas??

Hello! I used Thunderbird on a MacBook Pro with MacOS Catalina 10.15.7. No problems for years up to version 139.x. Now, starting with version 140.x, high CPU load and crash when exiting the Thunderbird. App Error also occurs with a completely new MacOS 10.15.7. Installation only with Thunderbird 141.0 and empty profile.

Does anyone have any tips?

I would like to continue using Thunderbird without any changes.

Best regards, Robert, Austria.

My TB upgraded to V141 today and I lost my google calendar and maybe my contacts too. The contacts are there but I don't think that they are syncing anymore. Calendar appointments missing altogether.

Many of the emails I receive with embedded html do not display right as "original HTML." I have to switch to "simple HTML." Then switch back. This is a real nuisance and time killer. This has been going on for several months now after one of the TBird upgrades. I can find no text display setting that will overcome this. I attached examples of an original and a simple display of the same incoming email.

What gives? This is running on a MACBook with the latest release of Sequoia.

Thanks, Steve

I had a compact card view in 115 that automatically changed itself over to a new expanded card view when a Thunderbird version update in Linux Mint 21.3 changed my Thunderbird version to 128.

Here is a screenshot of how I used to have my inbox and I want to keep it that way now but I don't know how.

Screenshots: https://imgur.com/a/9FziTqh

The first picture is how I had it setup before in 115 and I want to keep that format for 128. The second picture is what TB automatically changed my view to after the update. I didn't manually make any changes.

I have a userchrome.css setup already and it is making some changes but not everything I want anymore. How to I change the userchrome.css to revert the view? I want the colors and size and everything of the lighter color as well as the multi line view.

My userChrome.css is available to view here:

https://www.dropbox.com/scl/fi/x1ss94o727bzbptt64yot/userChrome.css?rlkey=zyywmb73r6pq9li7sah03sid5&e=1&st=cvu2yefz&dl=0

I know userChrome.css isn't officially supported but I want to try anyway.

I did read the FF Support page on how to add a bookmark to my Home Page Shortcuts, however there is no menu to the immediate right (not the right corner of the page) of my Address Bar that will do this, as described in this page. I cannot seem to locate another link that will do this. The only workaround is to expand home shortcuts to 4 rows, keep opening tabs with the same address, delete other shortcuts, and eventually my browsing history adds it to the group.

Is there a way? I am using Windows 7, so I can only use the ESR version.

Thanks!

I kept my installation of Windows 11 while doing a clean install of Windows 11 to another drive. I installed FF and copied the profile from the old installation to the new one. about:addons displays all my add-ons and they're all enabled. But their icons don't appear to the right of the search bar. How do I get them back?

I am using Firefox 141.0 (64-bit) on Windows 11.

When I watch a video on Firefox (say, on YouTube,) the first watch-through is fine. When I restart the video, the audio desyncs with the video. For instance, if the person in the video says a word, and that word normally appears on screen simultaneously, in Firefox, it takes a second or two for the person to say the word. If I back the video all the way to the beginning manually, and then press play, it works fine.

I've disabled Hardware Acceleration in order to try and fix it, but it didn't work. I would appreciate any help with this.

Thanks in advance.

I was working away on copying some files, nothing to do with Firefox. Firefox was open, though I hadn't used it in several minutes. Upon returning to Firefox, I noticed that although my browser had been open, it was not open anymore. All that was open was the download window.

At times in the past, I've accidentally closed the browser window while the download window was still open. I thought maybe this was what had happened this time, even though I absolutely didn't do that. I closed the download window and clicked on the icon on my desktop to restart it.

And that was when I discovered...no more tabs. Not a single one. Just a plain single blank tab.

In searching for an answer, I found this page: https://support.mozilla.org/en-US/questions/1396868 but in my confusion and horror and anxiety over needing to get the tabs restored, I had missed this part: "Assuming you found the .html file, it should indicate which .jsonlz4 file it was listing out. Is that the file you want to roll back to (the .jsonlz4 file, not the HTML file)?" and I had started to follow the procedure below it, and after renaming the two files as specified, I realized...I don't have a file to restore.

And so now I have nothing. I don't know how to restore my tabs at all. I literally have no access to anything, because all was tied up in those tabs. How do I restore them? I did find another procedure elsewhere that used "History" and "Restore previous session," but the problem with that solution is that in the "History" there's no such option at all. (This is where I found that one.) https://www.bleepingworld.com/restore-previous-session-firefox/

I'm so afraid to try anything now, I haven't had this problem in years and now I'm totally lost and afraid to mess this up more.

As for the browser I'm writing about, it's the latest Firefox, as I have it set to automatically update. OS is w10.

Also, I only have sync set for passwords. I don't have it set for tabs, for the reason that I use different ones on different devices.

Please, please, help!

Thanks in advance.