diff --git a/src/zen/drag-and-drop/ZenDragAndDrop.js b/src/zen/drag-and-drop/ZenDragAndDrop.js
index f6a2c7600..c00e60543 100644
--- a/src/zen/drag-and-drop/ZenDragAndDrop.js
+++ b/src/zen/drag-and-drop/ZenDragAndDrop.js
@@ -726,10 +726,11 @@
 
     #handle_sidebarDragOver(event) {
       const dt = event.dataTransfer;
+      const isTabDrag = dt.mozTypesAt(0)[0] === TAB_DROP_TYPE;
 
       const { isNearLeftEdge, isNearRightEdge } =
         this.#shouldSwitchSpace(event);
-      if (isNearLeftEdge || isNearRightEdge) {
+      if (isTabDrag && (isNearLeftEdge || isNearRightEdge)) {
         if (!this.#changeSpaceTimer && !this.#isOutOfWindow) {
           this.#changeSpaceTimer = setTimeout(() => {
             this.clearDragOverVisuals();
@@ -753,6 +754,10 @@
 
     handle_spaceIconDragOver(event) {
       const dt = event.dataTransfer;
+      if (dt.mozTypesAt(0)[0] !== TAB_DROP_TYPE) {
+        return;
+      }
+
       const draggedTab = dt.mozGetDataAt(TAB_DROP_TYPE, 0);
       if (draggedTab.hasAttribute("zen-essential")) {
         return;
diff --git a/src/zen/spaces/ZenSpaceCreation.mjs b/src/zen/spaces/ZenSpaceCreation.mjs
index a85509a96..09cf6d539 100644
--- a/src/zen/spaces/ZenSpaceCreation.mjs
+++ b/src/zen/spaces/ZenSpaceCreation.mjs
@@ -198,9 +198,7 @@ class nsZenWorkspaceCreation extends MozXULElement {
 
       this.currentProfile = {
         id: 0,
-        name: lazy.l10n.formatValueSync(
-          "zen-workspace-default-profile"
-        ),
+        name: lazy.l10n.formatValueSync("zen-workspace-default-profile"),
       };
     } else {
       this.inputProfile.parentNode.hidden = true;
@@ -311,9 +309,7 @@ class nsZenWorkspaceCreation extends MozXULElement {
       showManageContainers: false,
     });
 
-    const defaultItem = event.target.querySelector(
-      '[data-usercontextid="0"]'
-    );
+    const defaultItem = event.target.querySelector('[data-usercontextid="0"]');
     if (defaultItem) {
       defaultItem.removeAttribute("data-l10n-id");
       defaultItem.label = lazy.l10n.formatValueSync(
diff --git a/src/zen/spaces/ZenSpaceManager.mjs b/src/zen/spaces/ZenSpaceManager.mjs
index 57dcd6e96..912e39bef 100644
--- a/src/zen/spaces/ZenSpaceManager.mjs
+++ b/src/zen/spaces/ZenSpaceManager.mjs
@@ -1273,9 +1273,7 @@ class nsZenWorkspaces {
       showDefaultTab: true,
     });
 
-    const defaultItem = event.target.querySelector(
-      '[data-usercontextid="0"]'
-    );
+    const defaultItem = event.target.querySelector('[data-usercontextid="0"]');
     if (defaultItem) {
       defaultItem.removeAttribute("data-l10n-id");
       defaultItem.label = lazy.l10n.formatValueSync(