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+const puppeteer = require('puppeteer');
+
+/**
+ * To have Puppeteer fetch a Firefox binary for you, first run:
+ *
+ * PUPPETEER_PRODUCT=firefox npm install
+ *
+ * To get additional logging about which browser binary is executed,
+ * run this example as:
+ *
+ * DEBUG=puppeteer:launcher NODE_PATH=../ node examples/cross-browser.js
+ *
+ * You can set a custom binary with the `executablePath` launcher option.
+ *
+ *
+ */
+
+const firefoxOptions = {
+ product: 'firefox',
+ extraPrefsFirefox: {
+ // Enable additional Firefox logging from its protocol implementation
+ // 'remote.log.level': 'Trace',
+ },
+ // Make browser logs visible
+ dumpio: true,
+};
+
+(async () => {
+ const browser = await puppeteer.launch(firefoxOptions);
+
+ const page = await browser.newPage();
+ console.log(await browser.version());
+
+ await page.goto('https://news.ycombinator.com/');
+
+ // Extract articles from the page.
+ const resultsSelector = '.titleline > a';
+ const links = await page.evaluate(resultsSelector => {
+ const anchors = Array.from(document.querySelectorAll(resultsSelector));
+ return anchors.map(anchor => {
+ const title = anchor.textContent.trim();
+ return `${title} - ${anchor.href}`;
+ });
+ }, resultsSelector);
+ console.log(links.join('\n'));
+
+ await browser.close();
+})();