Welcome What's new in Chrome extensions Getting started API Reference Samples
Welcome What's new in Chrome extensions Getting started API Reference Samples

chrome.windows

  • Description

    Use the chrome.windows API to interact with browser windows. You can use this API to create, modify, and rearrange windows in the browser.

Manifest

When requested, a windows.Window will contain an array of tabs.Tab objects. You must declare the "tabs" permission in your manifest if you require access to the url, pendingUrl, title, or favIconUrl properties of tabs.Tab. For example:

{
"name": "My extension",
...
"permissions": ["tabs"],
...
}

The current window

Many functions in the extension system take an optional windowId parameter, which defaults to the current window.

The current window is the window that contains the code that is currently executing. It's important to realize that this can be different from the topmost or focused window.

For example, say an extension creates a few tabs or windows from a single HTML file, and that the HTML file contains a call to tabs.query. The current window is the window that contains the page that made the call, no matter what the topmost window is.

In the case of the event page, the value of the current window falls back to the last active window. Under some circumstances, there may be no current window for background pages.

Examples

Two windows, each with one tab

You can find simple examples of using the windows module in the examples/api/windows directory. Another example is in the tabs_api.html file of the inspector example. For other examples and for help in viewing the source code, see Samples.

Summary

Types

CreateType

Chrome 44+

Specifies what type of browser window to create. 'panel' is deprecated and is available only to existing whitelisted extensions on Chrome OS.

Type

"normal", "popup", or "panel"

QueryOptions

Chrome 88+

Properties

  • populate
    boolean optional

    If true, the windows.Window object has a tabs property that contains a list of the tabs.Tab objects. The Tab objects only contain the url, pendingUrl, title, and favIconUrl properties if the extension's manifest file includes the "tabs" permission.

  • windowTypes
    WindowType[] optional

    If set, the windows.Window returned is filtered based on its type. If unset, the default filter is set to ['normal', 'popup'].

Window

Properties

  • alwaysOnTop
    boolean

    Whether the window is set to be always on top.

  • focused
    boolean

    Whether the window is currently the focused window.

  • height
    number optional

    The height of the window, including the frame, in pixels. In some circumstances a window may not be assigned a height property; for example, when querying closed windows from the sessions API.

  • id
    number optional

    The ID of the window. Window IDs are unique within a browser session. In some circumstances a window may not be assigned an ID property; for example, when querying windows using the sessions API, in which case a session ID may be present.

  • incognito
    boolean

    Whether the window is incognito.

  • left
    number optional

    The offset of the window from the left edge of the screen in pixels. In some circumstances a window may not be assigned a left property; for example, when querying closed windows from the sessions API.

  • sessionId
    string optional

    The session ID used to uniquely identify a window, obtained from the sessions API.

  • state
    WindowState optional

    The state of this browser window.

  • tabs
    Tab[] optional

    Array of tabs.Tab objects representing the current tabs in the window.

  • top
    number optional

    The offset of the window from the top edge of the screen in pixels. In some circumstances a window may not be assigned a top property; for example, when querying closed windows from the sessions API.

  • type
    WindowType optional

    The type of browser window this is.

  • width
    number optional

    The width of the window, including the frame, in pixels. In some circumstances a window may not be assigned a width property; for example, when querying closed windows from the sessions API.

WindowState

Chrome 44+

The state of this browser window. In some circumstances a window may not be assigned a state property; for example, when querying closed windows from the sessions API.

Type

"normal", "minimized", "maximized", "fullscreen", or "locked-fullscreen"

WindowType

Chrome 44+

The type of browser window this is. In some circumstances a window may not be assigned a type property; for example, when querying closed windows from the sessions API.

Type

"normal", "popup", "panel", "app", or "devtools"

Properties

WINDOW_ID_CURRENT

The windowId value that represents the current window.

Value

-2

WINDOW_ID_NONE

The windowId value that represents the absence of a Chrome browser window.

Value

-1

Methods

create

chrome.windows.create(
  createData?: object,
  callback?: function,
)
Promise

Creates (opens) a new browser window with any optional sizing, position, or default URL provided.

Parameters

  • createData
    object optional
    • focused
      boolean optional

      If true, opens an active window. If false, opens an inactive window.

    • height
      number optional

      The height in pixels of the new window, including the frame. If not specified, defaults to a natural height.

    • incognito
      boolean optional

      Whether the new window should be an incognito window.

    • left
      number optional

      The number of pixels to position the new window from the left edge of the screen. If not specified, the new window is offset naturally from the last focused window. This value is ignored for panels.

    • setSelfAsOpener
      boolean optional
      Chrome 64+

      If true, the newly-created window's 'window.opener' is set to the caller and is in the same unit of related browsing contexts as the caller.

    • state
      WindowState optional
      Chrome 44+

      The initial state of the window. The minimized, maximized, and fullscreen states cannot be combined with left, top, width, or height.

    • tabId
      number optional

      The ID of the tab to add to the new window.

    • top
      number optional

      The number of pixels to position the new window from the top edge of the screen. If not specified, the new window is offset naturally from the last focused window. This value is ignored for panels.

    • type
      CreateType optional

      Specifies what type of browser window to create.

    • url
      string | string[] optional

      A URL or array of URLs to open as tabs in the window. Fully-qualified URLs must include a scheme, e.g., 'http://www.google.com', not 'www.google.com'. Non-fully-qualified URLs are considered relative within the extension. Defaults to the New Tab Page.

    • width
      number optional

      The width in pixels of the new window, including the frame. If not specified, defaults to a natural width.

  • callback
    function optional

    The callback parameter looks like: (window?: Window) => void

    • window
      Window optional

      Contains details about the created window.

Returns

  • Promise<Window | undefined>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

get

chrome.windows.get(
  windowId: number,
  queryOptions?: QueryOptions,
  callback?: function,
)
Promise

Gets details about a window.

Parameters

  • windowId
    number
  • queryOptions
    QueryOptions optional
    Chrome 88+
  • callback
    function optional

    The callback parameter looks like: (window: Window) => void

Returns

  • Promise<Window>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

getAll

chrome.windows.getAll(
  queryOptions?: QueryOptions,
  callback?: function,
)
Promise

Gets all windows.

Parameters

  • queryOptions
    QueryOptions optional
    Chrome 88+
  • callback
    function optional

    The callback parameter looks like: (windows: Window[]) => void

Returns

  • Promise<Window[]>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

getCurrent

chrome.windows.getCurrent(
  queryOptions?: QueryOptions,
  callback?: function,
)
Promise

Gets the current window.

Parameters

  • queryOptions
    QueryOptions optional
    Chrome 88+
  • callback
    function optional

    The callback parameter looks like: (window: Window) => void

Returns

  • Promise<Window>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

getLastFocused

chrome.windows.getLastFocused(
  queryOptions?: QueryOptions,
  callback?: function,
)
Promise

Gets the window that was most recently focused — typically the window 'on top'.

Parameters

  • queryOptions
    QueryOptions optional
    Chrome 88+
  • callback
    function optional

    The callback parameter looks like: (window: Window) => void

Returns

  • Promise<Window>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

remove

chrome.windows.remove(
  windowId: number,
  callback?: function,
)
Promise

Removes (closes) a window and all the tabs inside it.

Parameters

  • windowId
    number
  • callback
    function optional

    The callback parameter looks like: () => void

Returns

  • Promise<void>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

update

chrome.windows.update(
  windowId: number,
  updateInfo: object,
  callback?: function,
)
Promise

Updates the properties of a window. Specify only the properties that to be changed; unspecified properties are unchanged.

Parameters

  • windowId
    number
  • updateInfo
    object
    • drawAttention
      boolean optional

      If true, causes the window to be displayed in a manner that draws the user's attention to the window, without changing the focused window. The effect lasts until the user changes focus to the window. This option has no effect if the window already has focus. Set to false to cancel a previous drawAttention request.

    • focused
      boolean optional

      If true, brings the window to the front; cannot be combined with the state 'minimized'. If false, brings the next window in the z-order to the front; cannot be combined with the state 'fullscreen' or 'maximized'.

    • height
      number optional

      The height to resize the window to in pixels. This value is ignored for panels.

    • left
      number optional

      The offset from the left edge of the screen to move the window to in pixels. This value is ignored for panels.

    • state
      WindowState optional

      The new state of the window. The 'minimized', 'maximized', and 'fullscreen' states cannot be combined with 'left', 'top', 'width', or 'height'.

    • top
      number optional

      The offset from the top edge of the screen to move the window to in pixels. This value is ignored for panels.

    • width
      number optional

      The width to resize the window to in pixels. This value is ignored for panels.

  • callback
    function optional

    The callback parameter looks like: (window: Window) => void

Returns

  • Promise<Window>
    Pending

    This only returns a Promise when the callback parameter is not specified, and with MV3+. The type inside the Promise is the same as the 1st argument to callback.

Events

onBoundsChanged

chrome.windows.onBoundsChanged.addListener(
  callback: function,
)
Chrome 86+

Fired when a window has been resized; this event is only dispatched when the new bounds are committed, and not for in-progress changes.

Parameters

  • callback
    function

    The callback parameter looks like: (window: Window) => void

onCreated

chrome.windows.onCreated.addListener(
  callback: function,
  filters?: object,
)

Fired when a window is created.

Parameters

  • callback
    function
    Chrome 46+

    The callback parameter looks like: (window: Window) => void

    • window

      Details of the created window.

  • filters
    object optional
    • windowTypes

      Conditions that the window's type being created must satisfy. By default it satisfies ['normal', 'popup'].

onFocusChanged

chrome.windows.onFocusChanged.addListener(
  callback: function,
  filters?: object,
)

Fired when the currently focused window changes. Returns chrome.windows.WINDOW_ID_NONE if all Chrome windows have lost focus. Note: On some Linux window managers, WINDOW_ID_NONE is always sent immediately preceding a switch from one Chrome window to another.

Parameters

  • callback
    function
    Chrome 46+

    The callback parameter looks like: (windowId: number) => void

    • windowId
      number

      ID of the newly-focused window.

  • filters
    object optional
    • windowTypes

      Conditions that the window's type being removed must satisfy. By default it satisfies ['normal', 'popup'].

onRemoved

chrome.windows.onRemoved.addListener(
  callback: function,
  filters?: object,
)

Fired when a window is removed (closed).

Parameters

  • callback
    function
    Chrome 46+

    The callback parameter looks like: (windowId: number) => void

    • windowId
      number

      ID of the removed window.

  • filters
    object optional
    • windowTypes

      Conditions that the window's type being removed must satisfy. By default it satisfies ['normal', 'popup'].

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