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When I play YouTube videos in Firefox, the video stutters and drops frames, even at 480p. Audio keeps playing normally. This does not happen in Chrome on the same computer. The issue started about a week ago. I’m using Firefox on Windows 11 on a laptop. Restarting Firefox did not fix it.

Yahoo Mail settings. When I use Yahoo Mail with Thunderbird for Android, the folder structure is displayed in English. I want everything to be shown in German. Everything works correctly with Gmail; this is only a problem with Yahoo Mail. I've set everything to German in my Yahoo account, but it's still displayed in English in the app.

What can I do?

Hello all,

Thank you for Thunderbird mobile!

I get a message not sent error when doing the following on Android smartphone: - click an email address link - create email opens - send completed email

Expected result: Email goes to outbox and is removed after sending

Actual result: - email stays in outbox and error cannot send is displayed - when moving email to Entwürfe and send again the sending succeeds, but email is present twice in sent folder

Please have a look!

Best regards Gerrit

MB is telling me to put MB on Firefox! BUT, I already have MB on Firefox. Can you help me.

Thank you,

Tom Klima [edited email from public forum]

I'm simply trying to email someone using the email link on their site.

The link is a mailto link which requires an email application (which I don't have). All I want is to copy the link to the clipboard.

Firefox lets me right click the link and copy the email address, but this doesn't allow me to provide the required Subject specified by the site's author.

I could have sworn Firefox used to have this feature. Netscape and IE certainly always had it back in the day.

when I try to log into my gmail account, it is asking me to verify by log in first to an inactive account that was linked to my gmail account. with Chrome I have no problem log in to my gmail account

I recently went back from Thunderbird daily to the release channel when I set up my new PC.

1. On opening an email - The Subject display in Daily Version is Bold and according to the font as set in Thunderbird Settings. Just Perfect. It is not the same in the Release Channel. Looks not so nice.

2. In Release Channel -- under settings If I choose to display the "Name Only" under Message List for address display format. It ignores

3. Release channel is ver 146.0.1 .. If I go back to Thunderbird daily .. will I be able to use the same profile used for the Release channel?

With my thanks in advance

Hi,

Looking at my Firefox 147.0.1 settings for macOS 26.2 (Apple M1), I'm trying to adjust two settings:

-- I'd like to remove Languages -> English (GB) (its existence has odd side effects, like triggering United Airlines to offer fares in Pounds Sterling, and I'd prefer to just have English (US))

-- I'd like to disable Play Audio and Video for about:welcome (in regular and private windows)

I can see no way to accomplish this currently -- why?

Thanks.

I have my FF preferences setting as "Strict". But somehow Facebook people were able to hack into my FF account, and obtain my password for FB and other passwords? This comes directly from my Firefox preference page Red Warming Box includes & states on Sept 30, 2025 Facebook Hacked & Gained access to my account. Not a person, it states Facebook did it. And to change my FB password ASAP. So I go to my FB account go through their lame motions and they say they will not allow me to do so because I haven't used my account very long and they don't know if it is me trying to change my password. My question is what do I do now and how to prevent any social media outlet of simply hacking into my Mozilla account or my Firefox accounts? Please help. Seems like their should be a law against this type of intrusion gathering save password and etc.

When I let thunderbird compress the inbox and other folders, the not read flags on all new emails get reset as if I have read all of the new emails. Compressing the inbox and other folders should have no effect on the flags showing a message has not yet been read. That only makes sense. The not read flags getting reset started happening several versions before 145.

I cannot set up my icloud email in Thunderbird.

Error implies that the password is incorrect but i know it's correct, i am able to sign in to webmail using it just to prove a point.

"Unable to log in at server. Probably wrong configuration, username or password"

I have verified server info on apple support and verified username and password is what i use on all other devices. Username and password also works on MS outlook.

Bonjour, Lorsque je me connecte, j'ai un message que me dit : User is authenticated but not connected et ceci sur toutes mes boites mails. De plus, suite à un changement d'ordinateur mes mots de passe sont visibles aves des chiffres et des lettres "1//03csgEnBPtxsaCgYIARAAGAMSNwF-L9IrjQQom22l5sXSkYLP1h4BvsYHGmRYh43NZEdtoe " Je ne peux pas voir mes mots de passe enregistrés Je ne peux donc pas me connecter à mes boites mails car les mots de passe ne sont pas valides A savoir que je suis sur certaines boites mail sur @outlook.com (anciennement dbmail)

Pourriez-vous m'aider à débloquer le problème car je suis très embêtée Par avance merci et bonne soirée PS : Si je supprime l'application et que je l'installe de nouveau, vais-je perdre tout l'historique (dossiers, agendas, contacts, etc ...)

After the latest auto update all of my history, tabs/windows, and bookmarks were deleted and I can't recover them. I have tried importing bookmarks and it does not allow me to upload an old data file and I can't restore my previous session. I tried checking both profiles but neither had my information saved and now when I open the about:profiles says "Another copy of Firefox has made changes to profiles. You must restart Firefox before making more changes."

I'm scared to try anything else because I don't want to mess anything up further but I really need my tabs and history back.

I restarted my computer and then reopened firefox and it had updated and I noticed my bookmarks were gone but my windows/tabs were open, so I tried to choose a file on the bookmark backup and nothing was happening so I restarted and after that all my history and tabs were gone and I couldn't restore them.