Svi proizvodi Community Forum

Hi!

I am getting messages that I am blocking ads for many of my internet requests. I had never received these before but all of a sudden I started to get them. I have tried a number of things but nothing works.

I am running Windows 11 and do not have any Ad blockers.

Opening PDFs automatically with Firefox and, without any changes I might make, saving them with the download function in Firefox, actually ruins the functionality and data entry function of that file. Specifically this happens with PDF files downloaded from the (not all that amusing) PDFs from the FINCEN, (US Financial Crimes Enforcement Network). I do not see why and how Firefox thinks it is allowed to change files that are simply downloaded and saved on Firefox.

In other words, it seems that Firefox strips away certain "permissions" and/or "functions" (like built-in lookup, menu or choice boxes). This means that the file so downloaded via Firefox can no longer be used to properly fill in data, or to look up and choose data items within the file. (I see many times that ANYTHING having to do with "permissions" tends to be an intractable and unsolvable problem for software makers & experts, so, if you do not know right away how to solve the problem, it will probably take you several years to figure this out.)

The PDF in question is created by a government agency. If you have ever dealt with a government agency, then you know that they act sort of like Adobe or Microsoft: "They don't respond, or they do respond & say they do not understand, and if they understand, they are either unwilling or unable to fix the problem."

If there is a switch or option within Firefox, which lets me tell Firefox "Save this file exactly like it is received, nothing added or removed!", that would be nice. I just have not found such an option yet, and it would be nice if it might get provided someday.

I will share my browser data, but I am sort of convinced that a detailed question like mine will not be addressed within that shared data.

Today I read a lot of complaints about Manifest V3 and Google's monopoly with chromium. And looked at Firefox's market share from early 2024 to now. I've been thinking about how to regain a small market share and fight against chromium's dominance (although it seems impossible). For me and probably many other users, the biggest problem with firefox is its RAM usage. Currently Edge is the browser with the least RAM usage and has about 2% more market share than Firefox. If each Firefox tab was optimized to reduce 100 MB of RAM usage (without using any extensions to help reduce RAM usage), its market share would surpass Edge. What do you think?

Hallo! Mein e- Mail ist schlecht. Komm immer " Keine Mails gefunden " Bitte Reparieren sie mir mein Mailkonto. Dank im Voraus liebe Grüße Klaus Brunner PS. bin 83 Jahre und schwer Krank.

I would like the window control buttons to stay static rather than appearing when I mouse over them. I keep accidentally activating it when trying to change tabs and it is really inconvenient. Thanks!

Hello Thunderbird Community Help!

After reviewing and implementing all the suggestions on the Mozilla/Thunderbird support pages and on the internet, I still cannot send emails from my office365 mail account from Thunderbird. I was able to send/receive email messages until about 4-5 days ago. From several different accounts on my laptop. And from two different laptops: one using Windows 10 and the other 11. Now, both will receive emails to their inboxes but neither will send a message.

I have the various set-up parameters set as recommended for SMTP using Oauth2, see below and the attached photo:

Outgoing (SMTP): Server: smtp.office365.com Port: 587 Security: STARTTLS Authentication: OAuth2 Username: Your full Office 365 email address

I have deleted the stored password hundreds of times. I have deactivated MFA with Microsoft. I have deleted the e-mail profile in question many times, and have re-created it using automated and/or manual configurations. And I have deleted stored passwords.

I keep getting this message:

"Login to server smtp.office365.com with username [my.email.address] failed." With three button choices: "Retry" "Enter New Password" "Cancel"

No luck with Retry or Enter New Password. They both result in a brief, failed re-attempt to send the email message, and a return to the previous message and choices.

Pressing "Cancel" results in this message: "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'."

Additionally I've reset my MS password several times. And MS seemingly is uninterested in having TBird/me login to my office365 account. I just get this response repeated over and over:

"Login to server smtp.office365.com with username [my.email.address] failed." With three button choices: "Retry" "Enter New Password" "Cancel".

I've spent a LOT of time over the past few days and over the weekend looking for a solution, but nothing so far has worked and I'm at my wit's end!!

Any help that you folks far more experienced with TBird can give me to get things working again would be GREATLY appreciated.

Best regards...

Tony

Hello community, I have many history items from forms that I want delete, I can delete formhistory.sqlite from Firefox profile in AppData, but after while all unwanted items are back downloaded from Firefox Account (cloud). Is it possible somehow delete those file in Firefox Account too?

Edition Windows 10 IoT Enterprise LTSC Version 21H2 Installiert am ‎18.‎09.‎2025 Betriebssystembuild 19044.6937

Thunderbird Version 148.0 von Feb 2026

bis zum 5.3.2026 funktoinierte TB einwandfrei, aber seit gestern kann ich keine Mails mehr versenden, folgende Fehlermeldung wird angezeigt siehe Bild Hochgeladen. Gestern wurde die IP 18.195.155.157 angezeigt, heute 3.70.126.251

Empfangen von E-Mails hat funktioniert nur beim Senden oder Weiterleiten kommt die Fehlermeldung.

es Spielt auch keine Rolle von welchem Konto ich Mails verfasse, ob T-online,Web oder Agenturserver

Benutze den Acount auch auf einem Laptop mit W11, dort funktioniert alles,

Die SMTP Einstellungen hab ich überprüft, Laptop und diesem PC sind identisch (Hatte ja auch keine Änderung in diesem Bereich durchgeführt)

i hate the fact that my camera does not working chat group or otherwise ion Firefox and facebook. can not connect to family why does firefox not try to do something to fix it it used to work with facebook but now no ' even when i stop all extensions the camera does not work i have reinstalled the camera and it does work so why does my camera not work in firefox and facebook

Ich habe keine Zugriff mehr auf die Registrierungs E-Mail kontakt@meingutshaus.de und möchte ein neues Gerät anmelden, wie kann ich die E-Mail Adresse ändern?

What changed to prevent youtube from working? It worked for as long as I have had your browser and two days ago... all of a sudden it doesn't... just freezes. I've done what you suggested... it didn't work I installed an extension yesterday and it worked yesterday... Now today... not working even with extension

help please

on my laptop the firefox search engine randomly changes to one that I don't even have checked as "search shortcuts" but are still on my "default search engine" list for some reason (but never chosen by me

A few days ago (December 17th or so), Firefox just up and stopped loading altogether. I’m trying everything I can find, but to no avail. The internet itself is working fine. This is the message I’m getting (see attached).

I’m getting desperate, I can only do so much on my phone!

Thanks, Alsie

I have a iOS & I have been unable to open a link when clicking on a link (ex. Email link) it opens Firefox but only to the homepage. Won’t open the link to go to desired ‘address’

It hasn’t always done this but after last update