Greasy Fork is available in English.
Simple script to force the story text containing element on fanfiction.net & fictionpress.com to be left-aligned and the content wrapper element to use 99% width, massively improving readability if you use halfpage width on a widescreen display. Requires Scriptish.
// ==UserScript==
// @id fanfiction.net Widescreen Fix
// @name fanfiction.net Widescreen Fix
// @namespace *
// @description Simple script to force the story text containing element on fanfiction.net & fictionpress.com to be left-aligned and the content wrapper element to use 99% width, massively improving readability if you use halfpage width on a widescreen display. Requires Scriptish.
// @homepageURL http://greasyfork.icu/scripts/1997-fanfiction-net-widescreen-fix
// @author A for Anonymous
// @developer Glenjamin
// @contributor GhostFreeman
// @contributor mr_daemon
// @version 2.3.1
// @include http://*.fanfiction.net/*
// @include http://*.fictionpress.com/*
// @exclude http://m.fanfiction.net/*
// @exclude http://m.fictionpress.com/*
// @priority -99999999
// @delay 1300
// ==/UserScript==
document.getElementById("content_wrapper").style.width="99.99%"
document.getElementById("storytext").parentNode.align="left"