How do I allow pop-ups on my Acer Chromebook?
Google Chrome prevents pop-ups from automatically appearing and cluttering your screen. Whenever the browser blocks pop-ups for a site, the icon appears in the address bar. Click the icon to see the pop-ups that have been blocked or to manage pop-up settings for the site.
For information how to allow all pop-ups or pop-ups for specific sites, visit Google's Pop-ups page.
For more information, visit the Chrome OS Help Center.