Hide score on hacker news in firefox

userContent.css

/*

For me I know my score on HN gamifies me into wanting to spend more time on HN.
Anytime I see my score go up feel a tiny hit of pleasure and click to see why.
Looking at my comments anytime I see the score I feel proud someone liked my
comment.

While that is probably the intent I feel it's compelling me in unhealthy ways
and promotes my addiction to HN.

Using this userContent.css file I can hide that score. We'll see how it goes.

This goes in your user profile folder in a `chrome` sub folder. 
See: https://superuser.com/a/319322/16930

*/
@-moz-document domain(news.ycombinator.com) {
    .score { display: none; }
    body>center>table>tbody>tr:first-child>td>table>tbody>tr:first-child>td:nth-child(3) {
        visibility: hidden;
    }
    body>center>table>tbody>tr:first-child>td>table>tbody>tr:first-child>td:nth-child(3) a {
        visibility: visible;
    }
    html[op=user]>body>center>table>tbody>tr:nth-child(0n+3)>td:first-child form>table>tbody>tr:nth-child(3) {
        display: none;
    }
}