A script to copy Chrome's search engine settings into Vimium's settings format. 1. Open chrome://settings/searchEngines. 2. Copy this script and paste to JavaScript console. 3. Execute.

script.js

{
'use strict';
const engines = [];
engines.push(...document.querySelectorAll('list#default-search-engine-list div[role="listitem"]'));
engines.push(...document.querySelectorAll('list#other-search-engine-list div[role="listitem"]'));
engines.pop();
const data = engines.map(e => {
    const [name, keyword, url] = Array.from(e.querySelectorAll('.static-text')).map(e => e.textContent);
    return `# ${name}\n${keyword}: ${url}\n`;
}).join('\n');
console.log(data);
}