on my laptop Xnoltifier works, but my desktop does not launch xnotifier and i must log into each account.  both are windows 10, both are updated Mozilla & Chrome, both are 64bit.

any ideas why?

On Many Outlook/Hotmail  Email Accounts

That situation suggests some glitch on the non-working computer... and not with X-Notifier or Gmail.

You might uninstall X-Notifier, then...
You might try clearing browser cache and xnotifier cookies. 
Close the browser.
Go to the working computer and export your accounts... email them to yourself or copy to a USB stick.
(I might restart the problem computer.)
Open the browser on the problem computer and reinstall X-Notifier.
Import your accounts from the other computer.

Hopefully, they now work.
If not, add a new user profile to your browser, install X-N in the new user profile and add your accounts, perhaps from scratch (no import).

Good luck.

Curmudgeon's picture

In Chrome, my settings were set to "Clear Site Data".  once that was "Unchecked", all is well in chrome for "Both Laptop & Desktop".
sadly FF doesn't respond, so chrome is now my default browser.  FF will work with Yahoo Only...