I'm on Windows beta 8.8.0 (80800126). I'm also using the Chrome and Firefox beta add-ons. Firefox and Chrome using add-on version 2.3.5
For quite some time, logging in to 1Password for Windows has also logged me in to the Chrome and Firefox add-ons. As of today, however, this is no longer working. I have to separately log in to 1Password from each browser. Furthermore, if I close the browser, I am logged out of 1Password.
I have confirmed that 1Password for Windows is unlocked all during this.
1Password Version: 8.8.0 80800126
Extension Version: 2.3.5
OS Version: Windows 10 21H2 OS Build 19044.1741