I use the newest Firefox (on Win10) and the lastpass extension.
When I start firefox, the old log-in appears.
After log-in, my vault appears in the firefox window.
In the extension settings i switched on: new log-in Window and switched off: open vault after log-in.
How can i make the extension remember MY settings?
Could you try to uninstall the LastPass extension and re-download from here: https://lastpass.com/download, then verify the Show Vault on Login setting in your Browser Preferences is still unchecked and see if that resolves the issue?
This post has been merged with the main "Vault opening after login when option is not selected" thread