Really ugly runaround trying to get browser extensions installed. If the browser currently running is not your default browser, clicking the update button in the update-required dialog opens the default browser at agilebits, not the browser needing the update. After copy and paste of the URL, still doesn't work because it wants an authorization code that is not visible. Finally found discussion thread and learned that I needed to use 1PW mini to get the code. And then it did not match, until I clicked Cancel repeatedly and eventually it showed the same code as in the browser. Some of this was of course the result of repeatedly trying different things hoping to find a working procedure.
1Password Version: 1PW 1Password 6 Version 6.5.BETA-24 (650024)
Extension Version: 4.6.2.b1
OS Version: Mac OS 10.11.6
Sync Type: Dropbox