There are 8 previous versions of this script.
// ==UserScript==
// @name GMail Auto-Expand
// @namespace http://userscripts.org/users/63868
// @description Expand conversations automatically
// @include http://mail.google.com*
// @include https://mail.google.com*
// @require http://userscripts.org/scripts/source/56812.user.js
// ==/UserScript==
var api = new USO.Gmail()
api.on('view:cv', function () {
var view = this.view
, expand = view.ownerDocument.evaluate
( ".//img[@alt='Expand all']"
, view
, null
, XPathResult.FIRST_ORDERED_NODE_TYPE
, null
)
.singleNodeValue
if (expand) {
this.click(expand.parentNode)
}
})