"Do not support" doesn't mean that it won't work; just that they decline to offer any assistance or instructions for its use.

Yahoo has a consistently bad record in email.

But I am not sure what your question is, if you have one.

Hi Thank you for replying.

This is the email they sent. I got several more regarding the urgency of this matter however according to "Roger's tech support" it's not required for Tbird.

"Important: You must update your Rogers email account settings.

Act now Visit rogers.com/email for a step-by-step guide to update your email settings. If you need help or have questions, please call 1-866-515-3047. MyRogers"

"Updating your Rogers Yahoo! Email Settings

Rogers and Yahoo! are transitioning to a new standard for logging in to your email account from mail clients and devices that offers improved security over the old username/password login method. While this will enhance the security of your Rogers Yahoo! email, it may also require some changes to how you have set up your mail client to log in and get your email.

Who doesn’t need to update their settings?

No changes are required if you only check your email using Rogers Yahoo! Webmail. You can still use your username and personal password to log in as you normally do.

Customers who used the automatic Yahoo! setup option on the following mail clients are also good to go:

   Mail on iPhones and iPads running iOS 9.0 and above
   Mail on macOS 10.11/El Capitan and above
   Users of the Gmail client on Android phones and tablets running Lollipop/5.0 or newer
   Users of the Outlook Mobile app
   Users of the Yahoo! Mail app

Who needs to update their settings?

Customers with Rogers Yahoo! email addresses who use an email client like Microsoft Outlook, Windows Live Mail, or Outlook Express, versions of macOS Mail older than macOS 10.11/ El Capitan, or others that get email using either POP or IMAP.

Customers using cell phones and tablets may also need to change their settings if they’re using older devices or have manually set up their device for POP or IMAP using the “Other” option instead of the Yahoo! option.

To update your settings, you’ll need to create an App Password to use in place of your personal password for the email client you are using.

What’s an “App Password” and why do I need it?

App Passwords are randomly generated, application-specific passwords that can be generated in the Rogers Member Centre. App Passwords provide a more secure way for older clients that don’t support OAuth to check email because they will no longer send your personal password every time they log in.

While you will need to use these for your email client, you will continue to log in to webmail and the Rogers Member Centre with only your personal password.

My email client requires an App Password. How do I generate one in the Rogers Member Centre?

   Go to the sign in page.
   Enter the Rogers Yahoo! email address and password for the account you’d like to create an App Password for. Select Next.
   Mobile: Select the menu icon Menu icon in the top-left corner, then Account Information.
   Desktop: Select Account Information in the top-right corner of your browser window.
   Select Authorized Applications.
   In the Name your password field, label your App Password with the name of the mail client it’s for, then select Generate.
   Write down the randomly generated app password or copy it to your clipboard.
   Enter the password in your email client using the instructions below. When you’re finished, select Done on the popup.
   If you have another email client that needs an App Password, select Add Another. Or select the trash icon Trash Icon to delete an entry.

How do I update my settings to use the App Password?

The instructions below will help you update your password with the App Password for the most common email clients. If you need help with a client that’s not in the list, the software manufacturer will best be able to assist you with this.

Note: These instructions are intended for Rogers Yahoo! email users only. If you use a Rogers Yahoo! account to send email from a non-Rogers Yahoo! address, we recommend that you reach out to your other provider. Most have now updated their servers so that this is no longer necessary. If they are unable to help, you can still create an App Password, however enter it in your Outbound Email Server settings only.

Outlook 2010/2013/2016

   Click File.
   Click Account Settings twice.
   Select your Rogers email account and then click Change.
   In the Logon Information section:
       User Name should be your full @rogers.com email address.
       Password - enter or copy/paste the App Password you generated above for Outlook. Ensure the Remember Password option is checked.
   Click Next.
   Click Finish.
   Click Close.

Outlook 2007

   Click Tools and then Account Settings.
   Select your Rogers email account and then click Change.
   In the Logon Information section:
       User Name should be your full @rogers.com email address.
       Password - enter or copy/paste the App Password you generated above for Outlook 2007. Ensure the Remember Password option is checked.
   Click Next.
   Click Finish.

Windows 10 Mail [ ... ] Windows Live Mail [...] Windows Mail [...]

Outlook Express 6 [ ... ]

Mail on macOS [...]

Did you find what you were looking for?"

I removed the redundant text for each client. I have NO IDEA what to do because as you can see, they don't even mention MOZILLA. and I was told by a tech that some clients do not require this and likely Mozilla does not (that's a quote)

Thank you!

They are requiring you to create an application password on their web site or your mail client to use.

so on their web site you do the following. If you can not follow their instructions contact them and make them explain them in words you do understand.

My email client requires an App Password. How do I generate one in the Rogers Member Centre?

   Go to the sign in page.
   Enter the Rogers Yahoo! email address and password for the account you’d like to create an App Password for. Select Next.
   Mobile: Select the menu icon Menu icon in the top-left corner, then Account Information.
   Desktop: Select Account Information in the top-right corner of your browser window.
   Select Authorized Applications.
   In the Name your password field, label your App Password with the name of the mail client it’s for, then select Generate.
   Write down the randomly generated app password or copy it to your clipboard.
   Enter the password in your email client using the instructions below. When you’re finished, select Done on the popup.
   If you have another email client that needs an App Password, select Add Another. Or select the trash icon Trash Icon to delete an entry.

After you set the new password. The next time Thunderbird checks the mail it will ask for a password and the old one no longer works. enter the password you created and click in the dialog to use the password manager to save passwords.

Perhaps the lack of instructions is in some way related to the fact you really don't have to change anything in Thunderbird, only respond to a request for the new password.

Hi Thank you for replying! I'd called Rogers.com back last night & this tech said MOZILLA (T_BIRD, etc.) ALL do require the app password (as you mention) and whether I got help or not depends on the specific technician.

I think it is ENTIRELY UNACCEPTABLE that they do NOT have anything related to Thunderbird etc. anywhere on their Web site.

Is it okay to use the same alphanumeric string for the main account and the 2 sub-accounts? (I have 3 email addresses)

Thanks again!

Matt said

They are requiring you to create an application password on their web site or your mail client to use. so on their web site you do the following. If you can not follow their instructions contact them and make them explain them in words you do understand. My email client requires an App Password. How do I generate one in the Rogers Member Centre? Go to the sign in page. Enter the Rogers Yahoo! email address and password for the account you’d like to create an App Password for. Select Next. Mobile: Select the menu icon Menu icon in the top-left corner, then Account Information. Desktop: Select Account Information in the top-right corner of your browser window. Select Authorized Applications. In the Name your password field, label your App Password with the name of the mail client it’s for, then select Generate. Write down the randomly generated app password or copy it to your clipboard. Enter the password in your email client using the instructions below. When you’re finished, select Done on the popup. If you have another email client that needs an App Password, select Add Another. Or select the trash icon Trash Icon to delete an entry. After you set the new password. The next time Thunderbird checks the mail it will ask for a password and the old one no longer works. enter the password you created and click in the dialog to use the password manager to save passwords. Perhaps the lack of instructions is in some way related to the fact you really don't have to change anything in Thunderbird, only respond to a request for the new password.

Hi, Don't understand 2 things from your post:

1. The instructions (in the fixed font) are really for FF (so I mis-posted)?

2. Why don't I need to change anything in T_BIRD? That's actually what Rogers told me the first time I called them - that if the email client was not listed, it did not require an app pw. The next time I called Rogers I was told all software needs an app pw.

Thank you in advance (again)

1. Those instructions are about how to use a browser to get an application password. They are not specific to Firefox.

2. You don't have to explicitly do anything for yourself in Thunderbird. It will ask you for the password when the new password is required. You don't need to navigate its menus to find settings to change them.