Terter: Replace webpages on URLs — CCN0

This extension allows you to change the HTML that loads when a URL is visited. You can use it to replace pages with your own custom HTML webpages.

Usage: Click the extension icon, type a URL (it autofills to the current URL), enter your HTML, and click Save Custom Page. You can also delete the page by going to the URL, and clicking Delete Custom Page, you don't need to enter any HTML.