Description
Use the chrome.cookies
API to query and modify cookies, and to be notified when they change.
Permissions
cookies
To use the cookies API, declare the "cookies"
permission in your
manifest along with host permissions for any hosts whose cookies you want
to access. For example:
{
"name": "My extension",
...
"host_permissions": [
"*://*.google.com/"
],
"permissions": [
"cookies"
],
...
}
Partitioning
Partitioned cookies allow a site to mark that certain cookies should be keyed against the origin of the top-level frame. This means that, for example, if site A is embedded using an iframe in site B and site C, the embedded versions of a partitioned cookie from A can have different values on B and C.
By default, all API methods operate on unpartitioned cookies. The
partitionKey
property can be used to override this behavior.
For details on the general impact of partitioning for extensions, see Storage and Cookies.
Examples
You can find a simple example of using the cookies API in the examples/api/cookies directory. For other examples and for help in viewing the source code, see Samples.
Types
Cookie
Represents information about an HTTP cookie.
Properties
-
domain
string
The domain of the cookie (e.g. "www.google.com", "example.com").
-
expirationDate
number optional
The expiration date of the cookie as the number of seconds since the UNIX epoch. Not provided for session cookies.
-
hostOnly
boolean
True if the cookie is a host-only cookie (i.e. a request's host must exactly match the domain of the cookie).
-
httpOnly
boolean
True if the cookie is marked as HttpOnly (i.e. the cookie is inaccessible to client-side scripts).
-
name
string
The name of the cookie.
-
partitionKey
CookiePartitionKey optional
Chrome 119+The partition key for reading or modifying cookies with the Partitioned attribute.
-
path
string
The path of the cookie.
-
sameSiteChrome 51+
The cookie's same-site status (i.e. whether the cookie is sent with cross-site requests).
-
secure
boolean
True if the cookie is marked as Secure (i.e. its scope is limited to secure channels, typically HTTPS).
-
session
boolean
True if the cookie is a session cookie, as opposed to a persistent cookie with an expiration date.
-
storeId
string
The ID of the cookie store containing this cookie, as provided in getAllCookieStores().
-
value
string
The value of the cookie.
CookieDetails
Details to identify the cookie.
Properties
-
name
string
The name of the cookie to access.
-
partitionKey
CookiePartitionKey optional
Chrome 119+The partition key for reading or modifying cookies with the Partitioned attribute.
-
storeId
string optional
The ID of the cookie store in which to look for the cookie. By default, the current execution context's cookie store will be used.
-
url
string
The URL with which the cookie to access is associated. This argument may be a full URL, in which case any data following the URL path (e.g. the query string) is simply ignored. If host permissions for this URL are not specified in the manifest file, the API call will fail.
CookiePartitionKey
Represents a partitioned cookie's partition key.
Properties
-
hasCrossSiteAncestor
boolean optional
PendingIndicates if the cookie was set in a cross-cross site context. This prevents a top-level site embedded in a cross-site context from accessing cookies set by the top-level site in a same-site context.
-
topLevelSite
string optional
The top-level site the partitioned cookie is available in.
CookieStore
Represents a cookie store in the browser. An incognito mode window, for instance, uses a separate cookie store from a non-incognito window.
Properties
-
id
string
The unique identifier for the cookie store.
-
tabIds
number[]
Identifiers of all the browser tabs that share this cookie store.
OnChangedCause
The underlying reason behind the cookie's change. If a cookie was inserted, or removed via an explicit call to "chrome.cookies.remove", "cause" will be "explicit". If a cookie was automatically removed due to expiry, "cause" will be "expired". If a cookie was removed due to being overwritten with an already-expired expiration date, "cause" will be set to "expired_overwrite". If a cookie was automatically removed due to garbage collection, "cause" will be "evicted". If a cookie was automatically removed due to a "set" call that overwrote it, "cause" will be "overwrite". Plan your response accordingly.
Enum
"evicted" "expired" "explicit" "expired_overwrite" "overwrite"
SameSiteStatus
A cookie's 'SameSite' state (https://tools.ietf.org/html/draft-west-first-party-cookies). 'no_restriction' corresponds to a cookie set with 'SameSite=None', 'lax' to 'SameSite=Lax', and 'strict' to 'SameSite=Strict'. 'unspecified' corresponds to a cookie set without the SameSite attribute.
Enum
"no_restriction" "lax" "strict" "unspecified"
Methods
get()
chrome.cookies.get(
details: CookieDetails,
callback?: function,
)
Retrieves information about a single cookie. If more than one cookie of the same name exists for the given URL, the one with the longest path will be returned. For cookies with the same path length, the cookie with the earliest creation time will be returned.
Parameters
Returns
-
Promise<Cookie | undefined>
Chrome 88+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
getAll()
chrome.cookies.getAll(
details: object,
callback?: function,
)
Retrieves all cookies from a single cookie store that match the given information. The cookies returned will be sorted, with those with the longest path first. If multiple cookies have the same path length, those with the earliest creation time will be first. This method only retrieves cookies for domains that the extension has host permissions to.
Parameters
-
details
object
Information to filter the cookies being retrieved.
-
domain
string optional
Restricts the retrieved cookies to those whose domains match or are subdomains of this one.
-
name
string optional
Filters the cookies by name.
-
partitionKey
CookiePartitionKey optional
Chrome 119+The partition key for reading or modifying cookies with the Partitioned attribute.
-
path
string optional
Restricts the retrieved cookies to those whose path exactly matches this string.
-
secure
boolean optional
Filters the cookies by their Secure property.
-
session
boolean optional
Filters out session vs. persistent cookies.
-
storeId
string optional
The cookie store to retrieve cookies from. If omitted, the current execution context's cookie store will be used.
-
url
string optional
Restricts the retrieved cookies to those that would match the given URL.
-
-
callback
function optional
The
callback
parameter looks like:(cookies: Cookie[]) => void
-
cookies
Cookie[]
All the existing, unexpired cookies that match the given cookie info.
-
Returns
-
Promise<Cookie[]>
Chrome 88+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
getAllCookieStores()
chrome.cookies.getAllCookieStores(
callback?: function,
)
Lists all existing cookie stores.
Parameters
-
callback
function optional
The
callback
parameter looks like:(cookieStores: CookieStore[]) => void
-
cookieStores
All the existing cookie stores.
-
Returns
-
Promise<CookieStore[]>
Chrome 88+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
remove()
chrome.cookies.remove(
details: CookieDetails,
callback?: function,
)
Deletes a cookie by name.
Parameters
-
details
-
callback
function optional
The
callback
parameter looks like:(details?: object) => void
-
details
object optional
Contains details about the cookie that's been removed. If removal failed for any reason, this will be "null", and
runtime.lastError
will be set.-
name
string
The name of the cookie that's been removed.
-
partitionKey
CookiePartitionKey optional
Chrome 119+The partition key for reading or modifying cookies with the Partitioned attribute.
-
storeId
string
The ID of the cookie store from which the cookie was removed.
-
url
string
The URL associated with the cookie that's been removed.
-
-
Returns
-
Promise<object | undefined>
Chrome 88+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
set()
chrome.cookies.set(
details: object,
callback?: function,
)
Sets a cookie with the given cookie data; may overwrite equivalent cookies if they exist.
Parameters
-
details
object
Details about the cookie being set.
-
domain
string optional
The domain of the cookie. If omitted, the cookie becomes a host-only cookie.
-
expirationDate
number optional
The expiration date of the cookie as the number of seconds since the UNIX epoch. If omitted, the cookie becomes a session cookie.
-
httpOnly
boolean optional
Whether the cookie should be marked as HttpOnly. Defaults to false.
-
name
string optional
The name of the cookie. Empty by default if omitted.
-
partitionKey
CookiePartitionKey optional
Chrome 119+The partition key for reading or modifying cookies with the Partitioned attribute.
-
path
string optional
The path of the cookie. Defaults to the path portion of the url parameter.
-
sameSite
SameSiteStatus optional
Chrome 51+The cookie's same-site status. Defaults to "unspecified", i.e., if omitted, the cookie is set without specifying a SameSite attribute.
-
secure
boolean optional
Whether the cookie should be marked as Secure. Defaults to false.
-
storeId
string optional
The ID of the cookie store in which to set the cookie. By default, the cookie is set in the current execution context's cookie store.
-
url
string
The request-URI to associate with the setting of the cookie. This value can affect the default domain and path values of the created cookie. If host permissions for this URL are not specified in the manifest file, the API call will fail.
-
value
string optional
The value of the cookie. Empty by default if omitted.
-
-
callback
function optional
The
callback
parameter looks like:(cookie?: Cookie) => void
-
cookie
Cookie optional
Contains details about the cookie that's been set. If setting failed for any reason, this will be "null", and
runtime.lastError
will be set.
-
Returns
-
Promise<Cookie | undefined>
Chrome 88+Promises are supported in Manifest V3 and later, but callbacks are provided for backward compatibility. You cannot use both on the same function call. The promise resolves with the same type that is passed to the callback.
Events
onChanged
chrome.cookies.onChanged.addListener(
callback: function,
)
Fired when a cookie is set or removed. As a special case, note that updating a cookie's properties is implemented as a two step process: the cookie to be updated is first removed entirely, generating a notification with "cause" of "overwrite" . Afterwards, a new cookie is written with the updated values, generating a second notification with "cause" "explicit".
Parameters
-
callback
function
The
callback
parameter looks like:(changeInfo: object) => void
-
changeInfo
object
-
cause
The underlying reason behind the cookie's change.
-
cookie
Information about the cookie that was set or removed.
-
removed
boolean
True if a cookie was removed.
-
-