I'm using the subscription model of 1PW, so my experiences may be slightly different. I notice that in Google Chrome, I get a windowlet(?) stating that "1Password extension Desktop app required". When I hit a site that requires password/ID/etc., what happens when I click the 'extensions' icon in Chrome, the 1PW mini app opens with the desired info window or I get the '1PW Login' window. It's the same thing as selecting the 1PW menu bar (mini) app.
BTW, this is while using
1Password 7.6.
Same thing as above happens in Firefox 77...
What version of 1PW are you using?
I've had good responses from creating questions on the 1PW Support pages. And they work weekends.
I see
Jon has suggested contacting their Support pages.