@ Ed M
Maybe you can adapt this program to provide the info you need for cookies.
http://www.nirsoft.net/utils/mzcv.html
The information in sessions is stored in the prefs.js file.
user_pref("kmeleon.plugins.sessions.ask_autoload", false);
user_pref("kmeleon.plugins.sessions.autoload", false);
user_pref("kmeleon.plugins.sessions.cleanShutdown", false);
user_pref("kmeleon.plugins.sessions.maxUndo", 5);
user_pref("kmeleon.plugins.sessions.openStart", "");
user_pref("kmeleon.plugins.sessions2.Last Session.count", 1);
user_pref("kmeleon.plugins.sessions2.Last Session.window0", "19 51 36 768 660 0 -1 ");
user_pref("kmeleon.plugins.sessions2.Last Session.window0.count", 1);
user_pref("kmeleon.plugins.sessions2.Last Session.window0.tab0", "8 7 http://www.perigee.net/ Welcome to Perigee.net http://www.nirsoft.net/utils/index.html Freeware Tools and Utilities for Windows http://www.nirsoft.net/web_browser_tools.html Freeware Web Browser Tools Package http://www.nirsoft.net/utils/mzcv.html MozillaCookiesView: Cookies Manager For Mozilla/Firefox/Netscape Browsers http://kmeleonbrowser.org/forum/list.php?1 K-Meleon :: General http://kmeleonbrowser.org/forum/ K-Meleon http://kmeleonbrowser.org/forum/list.php?4 K-Meleon :: K-Meleon Improvement requests http://kmeleonbrowser.org/forum/read.php?4,82363 K-Meleon :: K-Meleon Improvement requests :: Cookie Editing ");
user_pref("kmeleon.plugins.sessions2.Previous Session.count", 1);
user_pref("kmeleon.plugins.sessions2.Previous Session.window0", "3 51 36 768 660 0 -1 ");
user_pref("kmeleon.plugins.sessions2.Previous Session.window0.count", 1);
user_pref("kmeleon.plugins.sessions2.Previous Session.window0.tab0", "5 3 http://www.perigee.net/ Welcome to Perigee.net http://kmeleonbrowser.org/forum/list.php?1 K-Meleon :: General http://kmeleonbrowser.org/forum/ K-Meleon http://kmeleonbrowser.org/forum/list.php?4 K-Meleon :: K-Meleon Improvement requests http://kmeleonbrowser.org/forum/read.php?4,82363 K-Meleon :: K-Meleon Improvement requests :: Cookie Editing ");
user_pref("kmeleon.plugins.sessions2.list", "Previous Session,");