👁️ obsolete, the feature is already builtin without requirement for this addon:
https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Experimental_features#toggle_password_display

Does exactly what it says. I just wish the eye icon was closer to the input box to reduce mouse movement. But the add-ons that do put it in the password box don't work as reliably.

For Wikipedia it works, but for online banking it doesn't work.

Does what says on the tin.
Perhaps should put a "LOOK AT THE ADDRESS BAR, DUMMY" sign when you first install it but other than that, great stuff, just what I needed after 'Show/Hide Passwords' stopped working with Quantum.

5 for working and simple solution, great work tnx