options_page

"options_page": "options/options.html"

Use the options_page key to define an options page that opens in a new tab. You use this page to enable users to modify your extension's settings.

The way the user opens the page is browser-dependent. In Firefox, the page opens when the extension's icon is clicked. Your extension can also open the page using runtime.openOptionsPage().

Alternatively, you can use the options_ui key with open_in_tab set to true. If options_ui is specified, options page is ignored.

See options_ui for more information on developing a settings page.