third_party/js/mozmill/shared-modules/addons.js
function addonsManager_undo(aSpec) {
    var spec = aSpec || { };
    spec.link = "undo";

    var link = this.getAddonLink(spec);
    this._controller.click(link);
  }
function addonsManager_undo(aSpec) {
    var spec = aSpec || { };
    spec.link = "undo";

    var link = this.getAddonLink(spec);
    this._controller.click(link);
  }
function addonsManager_undo ( aSpec ) { var spec = aSpec || { } ; spec . link = "undo" ; var link = this . getAddonLink ( spec ) ; this . _controller . click ( link ) ; }
Undo the last action performed for the given add-on

@param {object} aSpec
Information on which add-on to operate on
Elements: addon - Add-on element
Undo the last action performed for the given add - on