I have the 1Password X add-on installed on Firefox but whenever I try the fill login shortcut (⌘\), a window pops up prompting me to "Install the 1Password extension to fill passwords, credits cards, and addresses in Firefox". It's definitely installed. I can open it from the toolbar and autofill using the button.
I don't have this issue in Chrome. Any help?
Edit: Is this possibly because the keyboard shortcut isn't designed to work with 1Password X? On Chrome, I use the "desktop app required" version. I just tried downloading that version for Firefox from your website so I could compare, but I got a connection error.
1Password Version: 7.3.2
Extension Version: 1.16.2
OS Version: 10.14.4
Sync Type: Not Provided