diff --git a/Tests/LibWeb/Crash/wpt-import/dom/nodes/moveBefore/tentative/chrome-338071841-crash.html b/Tests/LibWeb/Crash/wpt-import/dom/nodes/moveBefore/chrome-338071841-crash.html
similarity index 100%
rename from Tests/LibWeb/Crash/wpt-import/dom/nodes/moveBefore/tentative/chrome-338071841-crash.html
rename to Tests/LibWeb/Crash/wpt-import/dom/nodes/moveBefore/chrome-338071841-crash.html
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/Node-moveBefore.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/Node-moveBefore.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/Node-moveBefore.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/Node-moveBefore.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/custom-element-move-reactions.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/custom-element-move-reactions.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/custom-element-move-reactions.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/custom-element-move-reactions.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/focus-within.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/focus-within.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/focus-within.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/focus-within.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/live-range-updates.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/live-range-updates.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/live-range-updates.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/live-range-updates.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-inside.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-inside.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-inside.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-inside.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-root.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-root.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-root.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-root.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/mutation-events.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/mutation-events.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/mutation-events.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/mutation-events.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/mutation-observer.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/mutation-observer.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/mutation-observer.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/mutation-observer.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/nonce.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/nonce.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/nonce.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/nonce.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/object-crash-regression.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/object-crash-regression.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/object-crash-regression.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/object-crash-regression.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/popover-preserve.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/popover-preserve.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/popover-preserve.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/popover-preserve.txt
diff --git a/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/style-applies.txt b/Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/style-applies.txt
similarity index 100%
rename from Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/tentative/style-applies.txt
rename to Tests/LibWeb/Text/expected/wpt-import/dom/nodes/moveBefore/style-applies.txt
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/Node-moveBefore.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/Node-moveBefore.html
similarity index 98%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/Node-moveBefore.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/Node-moveBefore.html
index 348561a7e50..7828f399ebc 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/Node-moveBefore.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/Node-moveBefore.html
@@ -1,14 +1,14 @@
 <!DOCTYPE html>
 <title>Node.moveBefore</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <div id="log"></div>
 <!-- First test shared pre-insertion checks that work similarly for replaceChild
      and moveBefore -->
 <script>
   var insertFunc = Node.prototype.moveBefore;
 </script>
-<script src="../../pre-insertion-validation-hierarchy.js"></script>
+<script src="../pre-insertion-validation-hierarchy.js"></script>
 <script>
 preInsertionValidateHierarchy("moveBefore");
 
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/custom-element-move-reactions.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/custom-element-move-reactions.html
similarity index 90%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/custom-element-move-reactions.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/custom-element-move-reactions.html
index b1e5ab892c0..924757e0d7d 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/custom-element-move-reactions.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/custom-element-move-reactions.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>Node.moveBefore custom element reactions</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <script>
 ;
 </script>
@@ -9,10 +9,14 @@
 <body>
   <section id="section"></section>
   <script>
+    let index = 0;
+    function unique_element_name() {
+        return `ce-${++index}`;
+    }
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push("connected"); }
@@ -31,7 +35,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push(this.isConnected); }
@@ -50,7 +54,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
               connectedMoveCallback() { reactions.push("connectedMove"); }
@@ -70,8 +74,8 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const outer_element_name = `ce-${performance.now()}-outer`;
-        const inner_element_name = `ce-${performance.now()}-inner`;
+        const outer_element_name = unique_element_name();
+        const inner_element_name = unique_element_name();
         customElements.define(outer_element_name,
             class MockCustomElement extends HTMLElement {
               connectedCallback() { reactions.push("outer connected"); }
@@ -97,7 +101,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 disconnectedCallback() { reactions.push("disconnected"); }
@@ -115,7 +119,7 @@
     promise_test(async t => {
         const ce = document.getElementById("ce");
         let reactions = [];
-        const element_name = `ce-${performance.now()}`;
+        const element_name = unique_element_name();
         customElements.define(element_name,
             class MockCustomElement extends HTMLElement {
                 connectedCallback() { reactions.push("connected"); }
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/focus-within.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/focus-within.html
similarity index 96%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/focus-within.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/focus-within.html
index 87d53b31061..b81de8f962a 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/focus-within.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/focus-within.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>moveBefore should handle focus bubbling correctly</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
 <section id="old_parent">
 <button id="button" tabindex="1">Button</button>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/live-range-updates.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/live-range-updates.html
similarity index 96%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/live-range-updates.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/live-range-updates.html
index 9bdc9dfcb94..f41d38fe30c 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/live-range-updates.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/live-range-updates.html
@@ -1,8 +1,8 @@
 <!DOCTYPE html>
 <html>
 <head>
-<script src='../../../../resources/testharness.js'></script>
-<script src='../../../../resources/testharnessreport.js'></script>
+<script src='../../../resources/testharness.js'></script>
+<script src='../../../resources/testharnessreport.js'></script>
 </head>
 
 <body>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-inside.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-inside.html
similarity index 89%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-inside.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-inside.html
index d8e4f816e83..31356c5d904 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-inside.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-inside.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
     <style>
         section {
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-root.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-root.html
similarity index 84%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-root.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-root.html
index 6b602213779..05838784e74 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/moveBefore-shadow-root.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/moveBefore-shadow-root.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 
 <body>
   <div id=shadowTarget></div>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-events.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-events.html
similarity index 83%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-events.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-events.html
index e405c425e3e..7521ecb0fa7 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-events.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-events.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>Mutation events are suppressed during moveBefore()</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 
 <body>
 <p id=reference>reference</p>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-observer.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-observer.html
similarity index 93%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-observer.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-observer.html
index b74ca81fb75..9454e84cc28 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/mutation-observer.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/mutation-observer.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>slotchanged event</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
 
 <div id=oldParent>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/nonce.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/nonce.html
similarity index 82%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/nonce.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/nonce.html
index 4ae68e52674..d7422962557 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/nonce.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/nonce.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>Nonce attribute is not cleared</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
 
 <section id="new_parent"></section>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/object-crash-regression.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/object-crash-regression.html
similarity index 74%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/object-crash-regression.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/object-crash-regression.html
index 460dc9cdc36..caad64f679b 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/object-crash-regression.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/object-crash-regression.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>Object element moveBefore() regression test</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
 
 <b id="p"><object>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/popover-preserve.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/popover-preserve.html
similarity index 83%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/popover-preserve.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/popover-preserve.html
index d902f1ccf9a..11e81f3947b 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/popover-preserve.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/popover-preserve.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <title>moveBefore should not close a popover</title>
-<script src="../../../../resources/testharness.js"></script>
-<script src="../../../../resources/testharnessreport.js"></script>
+<script src="../../../resources/testharness.js"></script>
+<script src="../../../resources/testharnessreport.js"></script>
 <body>
 <section id="old_parent">
 <div popover>
diff --git a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/style-applies.html b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/style-applies.html
similarity index 82%
rename from Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/style-applies.html
rename to Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/style-applies.html
index 312527c781e..d6ee7e02205 100644
--- a/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/tentative/style-applies.html
+++ b/Tests/LibWeb/Text/input/wpt-import/dom/nodes/moveBefore/style-applies.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
-<script src='../../../../resources/testharness.js'></script>
-<script src='../../../../resources/testharnessreport.js'></script>
+<script src='../../../resources/testharness.js'></script>
+<script src='../../../resources/testharnessreport.js'></script>
 <body>
 </body>
 <script>