Adding a manifest and installing the extension

In order to actually install our extension and see the fruits of our labor so far, we'll need to create a manifest file. This special file, saved in JSON format, controls certain aspects of the extension such as the pages it uses, and the content scripts it can run.

Prepare for Lift Off

In a new file add the following code:

{
    "name": "Web Contacts",
    "version": "1.0",
    "manifest_version": 2,
    "description": "Scrape web pages for Schema.org micro-data",
    "browser_action": {
        "default_popup": "popup.html"
    }
}

Save this file in the chrome-extension directory that we created at the start of the task within our main project directory as manifest.json.

Note

If the text editor you're using doesn't show .json in the Save as type: (or equivalent) drop-down, select the All types (*) option and type the full filename manifest.json in the File name: input field.

Engage Thrusters

In order to view the extension as it currently exists, it...