To disable extensions that have changed your New Tab, New Window or home page, see An extension changed my New Tab page or home page. To re-enable the extension, find it in the list of extensions and click the toggle for the corresponding extension. Click the blue toggle for the extension you wish to disable.Click the menu button, click Add-ons and Themes Add-ons and Themes Add-ons and select Extensions.Disabling and removing extensions Disabling extensionsĭisabling an extension will turn it off without removing it.