I don't know how 1password works; I'm using keepassxc. With keepassxc you have native application and extension, that communicate together via socket. The nati

I don't know how 1password works; I'm using keepassxc. With keepassxc you have native application and extension, that communicate together via socket. The native application can use whatever native APIs it wants. However, back to you. What's more weird, if it is pure Firefox Webextension, that Firefox (still by default) launches as X11 application under Wayland, so the extension should have no way to know the difference.