ISP Blames Mozilla - No Email for 5 days Now!

Hello, Need To Know: I have used Thunderbird (TBird) for many years. Recently, I moved TBird data from a Dell Inspiron 530 Win 7, to Alien Arora 1250. Unfortunately, t… (read more)

Hello,

Need To Know:

I have used Thunderbird (TBird) for many years. Recently, I moved TBird data from a Dell Inspiron 530 Win 7, to Alien Arora 1250. Unfortunately, the passwords would not go, so I copy and pasted the data for 10 email addresses. All worked well, until 5 days ago when I could not log into the ISP.

Since then, 12 ISP tech support people gave me 12 different was to fix the login problem. The 'logging in' kept trying to login. The only way to stop it is to close TB and restart it. The same happens with all 10 accounts - can't login.

I followed instructions to the letter and nothing worked. Later, a tech at ISP said they have had a lot of complaints from people with Tbird and said it's Mozilla's fault. They all said they don't support Thunderbird. They only support webmail. One even suggested I delete all my cookies. Of course I'm not going to do that.

You would not believe the amount of crazy ideas I was given.

Here is the core problem:

I used both Pop and IMAP depending on the email account. TBird was great with POP and IMAP either.

I changed all the passwords as instructed. I followed the Step-x-Step settings on the ISP web site

The ISP, Rogers, took over Shaw. Rogers, I'm told, dropped support for 3rd party email clients and requires customers to create a new email on their Webmail host. Webmail is WEBmail because it is not Email.

Testing Out TBird:

  1. On the old Win 7 TBird (Ver. 68.1.1 (32-bit)) Email works with both POP and IMAP settings.
  2. On the new Rig, Tbird (V. 147.0 (64-bit)) worked for a while.

What Happens: -- Due to the issues, I set Tbird to not:, -- Check for new messages at startup -- Check for new messages every -- Automatically download new messages -- Fetch headers only

The two ISP are Rogers Rogers and Shaw <--- just redirects to Rogers. But webmail.shaw.ca still works.

My Rig with the issues: Alienware Aurora Desktop 1250 Intel i9 Ultra Nvidia RTS 5080 Memory 32 GB DDR5 Storage 2 TB SSD + 2Tb HDD Thunderbird Version-147.0 (64-bit)

Is the ISP correct, that Thunderbird may be the core problem?

Thanks for your volunteering - where would we be without you, ~r

Asked by redacted 38 seconds ago

Considering updating from Thunderbird 97.0b3(64 bit) to latest non-beta version

Hi! I am a tax accountant. Considering updating from Thunderbird 97.0b3(64 bit) to latest non-beta version. Is this feasible? Is there a separate/special update process … (read more)

Hi! I am a tax accountant. Considering updating from Thunderbird 97.0b3(64 bit) to latest non-beta version. Is this feasible? Is there a separate/special update process from Beta to the latest? Also would like to continue to use my POP account set-up at Optimum(Cablevision) here on Long Island. Email (Outbound)SMTP and (inbound)POP mail servers have to remain the same. So initially , I have to backup all my existing Thunderbird data & Profile.

I have used Thunderbird for a long time; previously used Eudora. The problem which I am trying to prevent is that when I try to send a client their encrypted PDF of their tax returns and related instructions, etc. my document database or data magt system, namely File Cabinet Solutions show in the activity log "Waiting for user input" --- so no email is created which would have all the requisite documents attached. The last time helpful client send feature worked in my tax software, Ultratax, was June 27, 2025. Ultratax could not figure a solution, after several weeks & suggested that I upgrade my Thunderbird.. Can anyone help?

Thank you! Best, Mike Porcari--- [edited phone# from public community support forum] (cell)

Asked by MJPGILGO 4 hours ago

The E-mail which I received on January 29, 2026

My name is Yoshinobu OKUMOTO. I live in Nara prefecture in Japan. I use Thunderbird as my e-mail software. My e-mail address is "ssh6820@asahi.email.ne.jp". I have recei… (read more)

My name is Yoshinobu OKUMOTO. I live in Nara prefecture in Japan. I use Thunderbird as my e-mail software. My e-mail address is "ssh6820@asahi.email.ne.jp". I have received a mail at January 29 18:35, 2026 . In the space for name of a sender of the mail, "ssh6820@asahi.email.ne.jp" is written. This is my e-mail address in Thunderbird.

I did not sent a mail at January 29 18:35, 2026 . I wonder who sent this mail to me. 
When this mail was sent to me, a red spam mail mark was attached to this mail.
Usually, when I received a spam mail, I transfer the spam mail to a spam mail folder.
But in this case, if I transfer this mail to a spam mail folder, I worries that transformation might transfer a mail from my acquaintance to the spam mail folder from that time on.
In the main body of the mail which I received at January 29 18:35, 2026, it was written as follows.

" Account is invalid.

When this page is displayed, the total of the account "asahi.email.ne.jp" is invalid.

The procedure to confirm the reason 1. Log-in with a browser, for example Chrome, to the account "asahi.email.ne.jp." 2.If the account is invalid, the explanation is displayed."

In the sentences mentioned above, " Account is invalid.  When this page is displayed, the total of the account "asahi.email.ne.jp" is invalid."
But I can use my Thunderbird as usual except this mail.

Next, I tried to log-in to the account "asahi.email.ne.jp" with a browser Chrome, I could not log-in.

I already received this mail which have the same text three times until now, 1/20 19:17, 1/21 17:21, 1/24 21:04. 

If it is necessary for me to forward to you the mail which I received at January 29 18:35, 2026, I send the mail if you inform me of your mail address.  

I will be thankful, if you give me some advices in this case. 

(Mr) Yoshinobu OKUMOTO

Asked by ssh6820 1 hour ago

Google workspace OAuth

I'm trying to set up my thunderbird client (Version 147.0) to work with my Google Workspace. I understand that I should choose OAuth as the login method. The problem is t… (read more)

I'm trying to set up my thunderbird client (Version 147.0) to work with my Google Workspace. I understand that I should choose OAuth as the login method. The problem is that the option is not available when I try to create the account. There are only "normal password", "Encrypted password", "Kerberos/GSSAIP", "NTML" and "TLS certificate". What am I doing wrong?

Asked by Anders Astridsson 2 days ago

Last reply by sfhowes 3 hours ago

Thunderbird password I've used for years doesn't work

The Thunderbird password I've used for YEARS (and is stored in "Saved Passwords") no longer works. I have two laptops with the same password, and they both ceased (on the… (read more)

The Thunderbird password I've used for YEARS (and is stored in "Saved Passwords") no longer works. I have two laptops with the same password, and they both ceased (on the same day) allowing downloads (or sending) of emails. This occurs on both my laptops -- one has TB version 115.10.1 w/ Windows 10, and the other has 140.5.0esr w/ Windows 11. It also occurs on my iPhone when trying to access the mail server.

Could the problem be the mail server itself?

Please Advise

Bob Hawkins

Asked by rehawkpe 1 month ago

Last reply by rehawkpe 3 hours ago

Local folders in Google Drive

I currently use imap with my email hosting provider and has worked well with Thunderbird. However, speeds are getting slower and storage costs have gone up. It is time fo… (read more)

I currently use imap with my email hosting provider and has worked well with Thunderbird. However, speeds are getting slower and storage costs have gone up. It is time for me to move non-current emails from my email account to back it up while still accessible. I was wondering if Thunderbird's Local Folders default path (C:\Users\......\AppData\Roaming\Thunderbird\Profiles\......\Mail\Local Folders) can be changed to a google drive folder on D:\ drive. If there are any risks in doing so. Thanks.

Asked by nospam17 3 hours ago

Tools menu

I am trying to create filters for all the spam I have been receiving. It mentioned a tools menu for adding additional filters, but I am not seeing a tools menu anywhere, … (read more)

I am trying to create filters for all the spam I have been receiving. It mentioned a tools menu for adding additional filters, but I am not seeing a tools menu anywhere,

Asked by gerryeol 3 days ago

Last reply by gerryeol 4 hours ago

Remote content exceptions list needs improvement

Hello! After like 20+ years I wanted to return to Thunderbird and right after the start i stumbled upon a massive showstopper... The need to exclude every single address … (read more)

Hello! After like 20+ years I wanted to return to Thunderbird and right after the start i stumbled upon a massive showstopper... The need to exclude every single address "variation" of a website and/or email address is not only annoying, but will also make Thunderbird slower and slower with time.

Why does the exception list for remote content not support wildcards? Why do I have to separately allow content from e.g. "invitations@linkedin.com", "messages-noreply@linkedin.com" and "messaging-digest-noreply@linkedin.com", instead of just allowing all content from a domain "*linkedin.com"?

Regards, Black Seraph.

Asked by Black Seraph 7 hours ago

Last reply by david 4 hours ago

I don't remember my password to login to server imap.videotron.ca How do I change the find the password or get a new one please?

I need help to log into Thunderbird. I get the same message over and over again (login to server imap.videotron.ca with username...............failed. I've tried severa… (read more)

I need help to log into Thunderbird. I get the same message over and over again (login to server imap.videotron.ca with username...............failed. I've tried several tried and true passwords from before and none fit.

Asked by alaindoucet 4 hours ago

Two Thunderbird Profiles suddenly result in immediate startup crashes

Hello! The other day everything worked as usual, and I shut down the computer for the night. The next morning, Thunderbird immediately crashed/shut down when starting ea… (read more)

Hello! The other day everything worked as usual, and I shut down the computer for the night. The next morning, Thunderbird immediately crashed/shut down when starting each of the 2 profiles I always use. The 3rd profile, which is the default-release running a different email, still seems to work normally. Thunderbird 115.10.1

I have tried Windows (10) safe mode, as well as thunderbird Troubleshoot mode and working offline, but the issue continued to occur.

I'm at a loss now as to what could cause 2 profiles to suddenly cause it to crash. By the way, one profile is for a gmail account and the other one is for an Outlook account, so they don't seem to be related.

In case it helps, there were 2 Microsoft Visual C++ programs installed or updated, and updates to Microsoft 365 and Google Drive just before the problem started. These were all auto updates in the background.

Any help from the Community would be greatly appreciated. Thank you!

Asked by John Shillito 4 hours ago

  • Solved

folder filter problem

the problem is that when I receive an email it goes straight to delete folder there is no where I can set the filters to filter of my choosing, I have lost losing all in… (read more)

the problem is that when I receive an email it goes straight to delete folder there is no where I can set the filters to filter of my choosing, I have lost losing all in coming mails I am talking with telstra as one page said it is an IMAP problem in that it just removes emails for no reason but in your problems page it says I can change the filter settings but in the settings there is no place to change filter rules

I am getting very frustrated  after 6 hours and not getting anywhere  I have uninstall Thunderbird and reinstalled  but nothing changed 
running win 11os  on desktop 

what do you suggest

Asked by billboyd09 18 hours ago

Answered by david 10 hours ago

Not able to send email via Thunderbird but receive email easily

This month I downloaded the current version of Tbird on a new computer running windows 11. Tbird receives all my email but can not send mail. I have an old computer run… (read more)

This month I downloaded the current version of Tbird on a new computer running windows 11. Tbird receives all my email but can not send mail. I have an old computer running on windows 7 which has Tbird that was loaded at least 5 years ago. It receives and sends email without problems. The two versions of Tbird are using the same SMTP settings: server: mail.twc.com Port: 587. My email account for Tbird is slengyel@triad.rr.com

I also have a gmail account which receives and sends on both computers without problems. My gmail account is steve.lengyel9@gmail.com.

Both computers run through the same internet network.

Asked by Steve Lengyel 8 hours ago

Last reply by david 6 hours ago