extension.getViews()

Returns an array of the Window objects for each of the pages running inside the current extension. This includes, for example:

• the background page, if one is defined
• any popup pages, if defined and loaded
• any options pages, if defined and loaded
• any browser tabs that host content packaged with the extension

In Firefox, if this method is called from a page that is part of a private browsing window, such as a sidebar in a private window or a popup opened from a private window, then its return value will not include the extension's background page.

fetchPropertiesOptional

An object with the following properties:

typeOptional

string. An extension.ViewType indicating the type of view to get. If omitted, this function returns all views.

windowIdOptional

integer. The window to restrict the search to. If omitted, this function returns all views. In Firefox version 92 and earlier, sidebar views are not matched and, therefore, not returned.

array of object. Array of Window objects.

Get all windows belonging to this extension, and log their URLs:

let windows = browser.extension.getViews();

for (let extensionWindow of windows) {
  console.log(extensionWindow.location.href);
}

Get only windows in browser tabs hosting content packaged with the extension:

let windows = browser.extension.getViews({type: "tab"});

Get only windows in popups:

let windows = browser.extension.getViews({type: "popup"});