MacOS 10.14.5, 1Password7 7.3 (703000020), 1Password7 7.3 Safari extension
With the latest update of 1Password, almost every time I open my computer and then enter my master password into the 1Password app, once the password is entered, one of my frequently visited sites gets opened in Safari. I don't mean activate an already-open tab, I mean a new tab opens, and Safari browses to that web site. This happens on both my Macbook 12 and Macbook Pro, not every time, but most of the time. Sometimes, it doesn't happen, but I don't see a pattern.
Also new: when I change the focus to 1Password7 to enter the master password, I have to actually click in the app's text field to enter the password. The app has the focus, but typing results in the system bell until I click in the text field. This also doesn't happen every time, just most of the time.
The above two glitches only started with the latest update, and I've been using 1Password on these devices for about three years.