Add-ons

windows.Window

Information about a browser window.

Type

Values of this type are objects. They contain the following properties:

alwaysOnTop
boolean. Whether the window is set to be always on top.
focused
boolean. Whether the window is currently the focused window.
heightOptional
integer. The height of the window, including the frame, in pixels.
idOptional
integer. The ID of the window. Window IDs are unique within a browser session.
incognito
boolean. Whether the window is incognito.
leftOptional
integer. The offset of the window from the left edge of the screen in pixels.
sessionIdOptional
string. The session ID used to uniquely identify a Window obtained from the sessions API.
stateOptional
A windows.WindowState value representing the state of this browser window — maximized, minimized, etc.
tabsOptional
Array of tabs.Tab objects representing the current tabs in the window.
titleOptional
The title of the browser window. Requires "tabs" permission. Read only.
topOptional
integer. The offset of the window from the top edge of the screen in pixels.
typeOptional
A windows.WindowType value representing the type of browser window this is — normal browser window, popup, etc.
widthOptional
integer. The width of the window, including the frame, in pixels.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic Support (Yes) (Yes)45 No (Yes)
alwaysOnTop19 No45 No15
focused (Yes) (Yes)45 No (Yes)
height (Yes) (Yes)45 No (Yes)
id (Yes) (Yes)45 No (Yes)
incognito (Yes) (Yes)145 No (Yes)
left (Yes) (Yes)45 No (Yes)
sessionId31 No No No18
state (Yes) (Yes)45 No (Yes)
tabs (Yes) (Yes)45 No (Yes)
title No No56 No No
top (Yes) (Yes)45 No (Yes)
type (Yes) (Yes)45 No (Yes)
width (Yes) (Yes)45 No (Yes)

1. Supported as inPrivate.

Acknowledgements

This API is based on Chromium's chrome.windows API. This documentation is derived from windows.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: kestrel, wbamberg, chrisdavidmills
 Last updated by: kestrel,