Please support account login and multiple separate accounts
multiple account notification like X-notifier https://addons.mozilla.org/en-US/firefox/addon/xnotifier
It already does.
Maybe I am missing something, but it does not seem to support multiple accounts without having to login to Google first, and "linking" multiple accounts to one master account in Google account's settings.
Just "add account" via Gmail drop-down profile menu in the upper-right corner.
It isn't working.
It's working fine for me. I'm logged into 3 accounts.
Did you add additional accounts via Google login page?
NO
Well, there's your problem.
Where?
Click on your account icon in the upper-right corner within Gmail.

But I am not adding an account or signing out!
You mean your primary account? In that case, are you using any cookies blocker?
You have to allow at least mail.google.com
Notes:
- Gmail icon is blue although I am logged-in: This is a due to your cookie settings. For more info see https://add0n.com/gmail-notifier.html#IDComment1051578774 https://github.com/inbasic/ignotifier/issues/460#issuecomment-335837835
I HAVEAPRIMARY ACCT W/ GOOGLE
Perhaps I'm not understanding what problem you're having.
What's not working specifically?
~~@ecaron~~ @erica555 you need to be logged in into all the accounts that you would like to get notification from Read https://support.google.com/accounts/answer/1721977?co=GENIE.Platform%3DDesktop&hl=en for more info
When you are logged in, you can go to each Gmail account like https://mail.google.com/mail/u/0/ https://mail.google.com/mail/u/1/ https://mail.google.com/mail/u/2/ ...
At this point you should get the badge text of all the unread emails in your inboxes.
@inbasic You meant to tag @erica555
Yes! nice hearing from you though @ecaron.