Right after the update of 7.0.540, I found that in Waterfox (a fork of Firefox pre-quantum) I can no longer use short cut key to fill any form. So I went into 1P's setting to check on the connected browsers, it looks like it used to be identified as Firefox, but now it's "explorer by Microsoft Windows (paired)". I don't mind this unless it's connected to the problem of the shortcut key no longer working.
Could this be a problem of the browser extension or the 1P app itself?
1Password Version: 7.0.540
Extension Version: 18.104.22.168
OS Version: Win10 Pro 1709
Sync Type: Not Provided