Manifest - content scripts | Chrome Extensions | Chrome for DevelopersThe "content_scripts" key specifies a statically loaded JavaScript or CSS file to be used every time a page is opened that matches a certain URL pattern. Extensions can also inject content scripts programmatically, see Injecting Scripts for details. Manifest These are the supported keys for "content_scripts". Only the "matches" key and either "js" or "css" are required. manifest.json { "name": "My
