webRequest.RequestFilter

An object describing filters to apply to webRequest events.

Type

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

urls
array of string. An array of match patterns. The listener will only be called for requests whose targets match any of the given patterns. Only requests made using HTTP or HTTPS will trigger events, even though match patterns can match some other protocols.
typesOptional
array of webRequest.ResourceType. A list of resource types (for example, stylesheets, images, scripts). The listener will only be called for requests for resources which are one of the given types.
tabIdOptional
integer. The listener will only be called for requests from the tab identified by this ID.
windowIdOptional
integer. The listener will only be called for requests from the window identified by this ID.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxOperaFirefox for Android
Basic supportChrome Full support YesEdge Full support 14Firefox Full support 45Opera Full support YesFirefox Android Full support 48
urlsChrome Full support YesEdge Full support 14Firefox Full support 45
Notes
Full support 45
Notes
Notes Before Firefox 56, moz-extension:// URLs were not allowed.
Opera Full support YesFirefox Android Full support 48
Notes
Full support 48
Notes
Notes Before Firefox 56, moz-extension:// URLs were not allowed.
windowIdChrome Full support YesEdge Full support 14Firefox Full support 53Opera Full support YesFirefox Android Full support 53
tabIdChrome Full support YesEdge Full support 14Firefox Full support 53Opera Full support YesFirefox Android Full support 53

Legend

Full support  
Full support
See implementation notes.
See implementation notes.

Acknowledgements

This API is based on Chromium's chrome.webRequest API. This documentation is derived from web_request.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, rolfedh
Last updated by: wbamberg,