diff --git a/plugins/treestyletabs.js b/plugins/treestyletabs.js
new file mode 100644
index 00000000..6497ff87
--- /dev/null
+++ b/plugins/treestyletabs.js
@@ -0,0 +1,163 @@
+"use strict";
+var INFO = [
+        "plugin",
+        {
+            name: "treestyletabs",
+            version: "0.1",
+            href: "",
+            summary: "TreeStyleTabs integration for Pentadactyl",
+            xmlns: "dactyl"
+        },
+        [
+            "author",
+            { email: "nelo@wallus.de" },
+            "Nelo-T. Wallus"
+        ],
+        [
+            "license",
+            { href: "http://opensource.org/licenses/mit-license.php" },
+            "MIT"
+        ],
+        [
+            "project",
+            { name: "Pentadactyl", "min-version": "1.0" }
+        ],
+    ];
+
+// pass true to close, false to open
+function fold_collapse_expand_target(tab, collapse, children = false) {
+    if (children) {
+        let childs = TreeStyleTabService.getDescendantTabs(tab);
+        for (let x in childs) {
+            gBrowser.treeStyleTab.collapseExpandSubtree(childs[x], collapse);
+        }
+    }
+    gBrowser.treeStyleTab.collapseExpandSubtree(tab, collapse);
+}
+
+function fold_collapse_expand(collapse, children = false) {
+    fold_collapse_expand_target(
+        gBrowser.tabContainer.selectedItem,
+        collapse,
+        children
+        );
+}
+
+function fold_collapse_expand_toggle(children = false) {
+    fold_collapse_expand(
+        !TreeStyleTabService.isSubtreeCollapsed(gBrowser.tabContainer.selectedItem),
+        children
+        );
+}
+
+function create_command_and_mapping(command, description, funcref, mapping) {
+    group.commands.add([command], description, funcref, {}, true );
+    if (mapping != "")
+        group.mappings.add([modes.NORMAL], [mapping], description, funcref);
+}
+
+create_command_and_mapping(
+    "foldopen",
+    "Open fold under tab",
+    function () {
+        fold_collapse_expand(false);
+    },
+    "zo"
+    );
+
+create_command_and_mapping(
+    "foldopenrecursively",
+    "Open fold under tab recursively",
+    function () {
+        fold_collapse_expand(false, true);
+    },
+    "zO"
+    );
+
+create_command_and_mapping(
+    "foldclose",
+    "Close fold under tab",
+    function () {
+        fold_collapse_expand(true);
+    },
+    "zc"
+    );
+
+create_command_and_mapping(
+    "foldcloserecursively",
+    "Close fold under tab recursively",
+    function () {
+        fold_collapse_expand(true, true);
+    },
+    "zC"
+    );
+
+create_command_and_mapping(
+    "foldtoggle",
+    "Toggle fold under tab",
+    function () {
+        fold_collapse_expand_toggle();
+    },
+    "za"
+    );
+
+create_command_and_mapping(
+    "foldtogglerecursively",
+    "Toggle fold under tab recursively",
+    function () {
+        fold_collapse_expand_toggle(true);
+    },
+    "zA"
+    );
+
+create_command_and_mapping(
+    "foldcloseall",
+    "Close all folds",
+    function () {
+        let roots = TreeStyleTabService.rootTabs;
+        for (let x in roots) {
+            fold_collapse_expand_target(roots[x], true, true);
+        }
+    },
+    "zM"
+    );
+
+create_command_and_mapping(
+    "foldopenall",
+    "Open all folds",
+    function () {
+        let roots = TreeStyleTabService.rootTabs;
+        for (let x in roots) {
+            fold_collapse_expand_target(roots[x], false, true);
+        }
+    },
+    "zR"
+    );
+
+create_command_and_mapping(
+    "tabpromote",
+    "Promote current tab",
+    function () {
+        TreeStyleTabService.promoteCurrentTab();
+    },
+    "<"
+    );
+
+create_command_and_mapping(
+    "tabdemote",
+    "Demote current tab",
+    function () {
+        TreeStyleTabService.demoteCurrentTab();
+    },
+    ">"
+    );
+
+create_command_and_mapping(
+    "tabchildopen",
+    "Open one or more URLs in a new child tab",
+    function (args) {
+        TreeStyleTabService.readyToOpenChildTab();
+        dactyl.open(args, { where: dactyl.NEW_TAB });
+    },
+    ""
+    );