global-auto-revert-non-file-buffers

global-auto-revert-non-file-buffers is a variable defined in `autorevert.el'.
Its value is

nil

Documentation:
When nil, Global Auto-Revert mode operates only on file-visiting buffers.

When non-nil, both file buffers and buffers with a custom
`revert-buffer-function' and a `buffer-stale-function' are
reverted by Global Auto-Revert mode. These include the Buffer
List buffer displayed by `buffer-menu', and Dired buffers showing
complete local directories. The Buffer List buffer reverts every
`auto-revert-interval' seconds; Dired buffers when the file list of
the main directory changes. Dired buffers do not auto-revert as
a result of changes in subdirectories, or in the contents, size,
modes, etc., of files. You may still sometimes want to revert
them manually.

Use this option with care since it could lead to excessive auto-reverts.
For more information, see Info node `(emacs)Autorevert'.

You can customize this variable.