# Manage extensions This menu allows you to check or force an Ancestris updates, and to customize Ancestris by installing or uninstalling modules according to your needs. [![en-extensions.png](https://docs.ancestris.org/uploads/images/gallery/2020-10/scaled-1680-/en-extensions.png)](https://docs.ancestris.org/uploads/images/gallery/2020-10/en-extensions.png) In general, there would be little need to go through this kind of customization. Instructions to use the window are available in the Preferences chapter of this documentation. Please refer to the corresponding [Manage Extensions](https://docs.ancestris.org/books/user-guide/page/manage-extensions-%28l%29 "Manage extensions") page.