SimpleLogin is good, but the extension is pretty basic and bad UX.

Clicking the button makes an alias, but most webforms don't register the input so as soon as you click into the field it disapears. The extension doesn't bother to copy it to your clipboard, so most times you have to manually type it back in, or go to the SimpleLogin dashboard to re-copy it, which sort of defeats the point.

I was allowed ten uses, then I must pay.

I need it only selectively. The SimpleLogin MASK/icon covers my 1Password icon. I need a way to turn this ON only when I need it.. for now I'll have to remove.