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paramName
( optional enumerated Type array of paramType )
Undocumented.
Description of this parameter from the json schema.
This parameter was added in version . You must omit this parameter in earlier versions, and you may omit it in any version. If you require this parameter, the manifest key minimum_chrome_version can ensure that your extension won't be run in an earlier browser version.
Parameters

Google Chrome Extensions (Labs)

Experimental.omnibox

The omnibox API allows you to register a keyword with Google Chrome's address bar, which is also known as the omnibox.

A screenshot showing suggestions related to the keyword 'Chromium Search'

When the user enters your extension's keyword, the user starts interacting solely with your extension. Each keystroke is sent to your extension, and you can provide suggestions in response.

The suggestions can be richly formatted in a variety of ways. When the user accepts a suggestion, your extension is notified and can take action.

Manifest

To use the omnibox API, your manifest must declare the "experimental" permission and specify an omnibox_keyword field. You should also specify a 16x16-pixel icon, which will be displayed in the omnibox when suggesting users enter keyword mode.

For example:

{
  "name": "Aaron's omnibox extension",
  "version": "1.0",
  "permissions": ["experimental"],
  "omnibox_keyword": "aaron",
  "icons": {
    "16": "16-full-color.png"
  },
  "background_page": "background.html"
}

Note: Google Chrome automatically creates a greyscale version of your 16x16-pixel icon. You should provide a full-color version so that it can also be used in other situations that require color. For example, the context menus API also uses a 16x16-pixel icon, but it is displayed in color.

Examples

You can find samples of this API on the sample page.