* lisp/xwidget.el (xwidget-webkit-buffer-name-format): Update
doc string.
(defcustom xwidget-webkit-cookie-file nil
"The name of the file where `xwidget-webkit-browse-url' will store cookies.
They will be stored as plain text in Mozilla \"cookies.txt\"
-format. If nil, do not store cookies."
- :type '(choice (const :tag "Do not store cookies" nil) file)
+format. If nil, do not store cookies. You must kill all xwidget-webkit
+buffers for this setting to take effect after setting it to nil."
+ :type 'string
:version "29.1")
;;;###autoload