What is happening here, exactly?
We’re no strangers to love
You know the rules and so do I
A full commitment’s what I’m thinking of
This is Firefox's password manager. For some reason, instead of just being a preference about the display of unrevealed passwords, every password entry has two "reveal" buttons: one that completely blanks it (the first one), and one that reveals it (the second one). We can totally differentiate these because the first icon is so much bigger than the second one!