# httptool An extension that simply exposes the [browser.webRequest](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest) APIs. ## Applying Changes Changes are autosaved on edit, however to apply them, you need to disable and re-enable the addon, or restart the browser. This is to prevent us from needing to handle unregistering & re-registering anything.