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StorageChange is an object representing a change to a storage area.


StorageChange objects contain the following properties:

The old value of the item, if there was an old value. This can be any data type.
The new value of the item, if there is a new value. This can be any data type.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic supportYesYes4548Yes


This API is based on Chromium's API. This documentation is derived from storage.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: wbamberg, chrisdavidmills
 Last updated by: wbamberg,