Trying to edit a record from the Safari extension tries to open 1Password 7

Hey @efenner ,
Having both 1Password 7 and 1Password 8 installed might cause such side effects.

If you don't want to remove 1Password 7 yet, simply right-click the app in the Applications folder and zip/archive it, then keep it in its zipped form and delete the actual app. That'll make 1Password 8 the only active 1Password app on the system and things should work well.

Whenever you need/want 1Password 7 back, simply unzip it, then zip/archive 1Password 8.