http://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/support/update-password-manager
Click on the 1Password browser extension (if you use a Chrome-based browser, this may be hidden inside the Extensions dropdown menu on your taskbar). 3. Search for your Proton account, select it, then click the 3-dot menu button → Edit . 3. Edit the website field, changing the part that says protonmail.com to proton.me .