Seems like the latest update (7.7.1.BETA-10) is no longer working with the Chrome and Firefox Classic extension (22.214.171.124)
I tried restarting 1password and Chrome and Firefox
On Firefox, when I click the extention nothing happens. Sometimes it flashes the main 1password app to the foreground and then back. The extension popup never shows.
On Chrome when I click on the extension I get
1Password Version: 7.7.1.BETA-10 (70701010)
Extension Version: 126.96.36.199
OS Version: 11.2.2 (20D80)
Sync Type: Not Provided