diff --git a/src/browser/components/tabbrowser/content/tabbrowser-js.patch b/src/browser/components/tabbrowser/content/tabbrowser-js.patch
index 0950c539d..01fab47d2 100644
--- a/src/browser/components/tabbrowser/content/tabbrowser-js.patch
+++ b/src/browser/components/tabbrowser/content/tabbrowser-js.patch
@@ -1,5 +1,5 @@
 diff --git a/browser/components/tabbrowser/content/tabbrowser.js b/browser/components/tabbrowser/content/tabbrowser.js
-index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f83733bf0 100644
+index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..f6ac8df9fdd064ffec7f4290b4a85755693d9bdb 100644
 --- a/browser/components/tabbrowser/content/tabbrowser.js
 +++ b/browser/components/tabbrowser/content/tabbrowser.js
 @@ -386,6 +386,7 @@
@@ -725,17 +725,23 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
        if (this.tabs.length == 1) {
          return null;
        }
-@@ -6213,7 +6372,8 @@
+@@ -6209,12 +6368,14 @@
+       }
+ 
+       // tell a new window to take the "dropped" tab
+-      return window.openDialog(
++      let win = window.openDialog(
          AppConstants.BROWSER_CHROME_URL,
          "_blank",
          options,
--        aTab
-+        aTab,
-+        zenForceSync ? "zen-synced" : "zen-unsynced"
+         aTab
        );
++      win._zenStartupSyncFlag = zenForceSync ? 'synced' : 'unsynced';
++      return win;
      }
  
-@@ -6319,7 +6479,7 @@
+     /**
+@@ -6319,7 +6480,7 @@
       *   `true` if element is a `<tab-group>`
       */
      isTabGroup(element) {
@@ -744,7 +750,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
      }
  
      /**
-@@ -6404,8 +6564,8 @@
+@@ -6404,8 +6565,8 @@
        }
  
        // Don't allow mixing pinned and unpinned tabs.
@@ -755,7 +761,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
        } else {
          tabIndex = Math.max(tabIndex, this.pinnedTabCount);
        }
-@@ -6431,10 +6591,16 @@
+@@ -6431,10 +6592,16 @@
        this.#handleTabMove(
          element,
          () => {
@@ -774,7 +780,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
            if (neighbor && this.isTab(element) && tabIndex > element._tPos) {
              neighbor.after(element);
            } else {
-@@ -6492,23 +6658,28 @@
+@@ -6492,23 +6659,28 @@
      #moveTabNextTo(element, targetElement, moveBefore = false, metricsContext) {
        if (this.isTabGroupLabel(targetElement)) {
          targetElement = targetElement.group;
@@ -809,7 +815,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
        } else if (!element.pinned && targetElement && targetElement.pinned) {
          // If the caller asks to move an unpinned element next to a pinned
          // tab, move the unpinned element to be the first unpinned element
-@@ -6521,14 +6692,34 @@
+@@ -6521,14 +6693,34 @@
          //    move the tab group right before the first unpinned tab.
          // 4. Moving a tab group and the first unpinned tab is grouped:
          //    move the tab group right before the first unpinned tab's tab group.
@@ -845,7 +851,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
          element.pinned
            ? this.tabContainer.pinnedTabsContainer
            : this.tabContainer;
-@@ -6537,7 +6728,7 @@
+@@ -6537,7 +6729,7 @@
          element,
          () => {
            if (moveBefore) {
@@ -854,7 +860,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
            } else if (targetElement) {
              targetElement.after(element);
            } else {
-@@ -6607,10 +6798,10 @@
+@@ -6607,10 +6799,10 @@
       * @param {TabMetricsContext} [metricsContext]
       */
      moveTabToGroup(aTab, aGroup, metricsContext) {
@@ -867,7 +873,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
          return;
        }
        if (aTab.group && aTab.group.id === aGroup.id) {
-@@ -6656,6 +6847,7 @@
+@@ -6656,6 +6848,7 @@
  
        let state = {
          tabIndex: tab._tPos,
@@ -875,7 +881,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
        };
        if (tab.visible) {
          state.elementIndex = tab.elementIndex;
-@@ -6682,7 +6874,7 @@
+@@ -6682,7 +6875,7 @@
        let changedTabGroup =
          previousTabState.tabGroupId != currentTabState.tabGroupId;
  
@@ -884,7 +890,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
          tab.dispatchEvent(
            new CustomEvent("TabMove", {
              bubbles: true,
-@@ -6723,6 +6915,10 @@
+@@ -6723,6 +6916,10 @@
  
        moveActionCallback();
  
@@ -895,7 +901,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
        // Clear tabs cache after moving nodes because the order of tabs may have
        // changed.
        this.tabContainer._invalidateCachedTabs();
-@@ -7623,7 +7819,7 @@
+@@ -7623,7 +7820,7 @@
              // preventDefault(). It will still raise the window if appropriate.
              break;
            }
@@ -904,7 +910,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
            window.focus();
            aEvent.preventDefault();
            break;
-@@ -7640,7 +7836,6 @@
+@@ -7640,7 +7837,6 @@
          }
          case "TabGroupCollapse":
            aEvent.target.tabs.forEach(tab => {
@@ -912,7 +918,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
            });
            break;
          case "TabGroupCreateByUser":
-@@ -8589,6 +8784,7 @@
+@@ -8589,6 +8785,7 @@
              aWebProgress.isTopLevel
            ) {
              this.mTab.setAttribute("busy", "true");
@@ -920,7 +926,7 @@ index 42027bfa55eab8ea9298a7d425f2ded45188f7f3..9a619171c7f1f7ba43c2c661bdad370f
              gBrowser._tabAttrModified(this.mTab, ["busy"]);
              this.mTab._notselectedsinceload = !this.mTab.selected;
            }
-@@ -9623,7 +9819,7 @@ var TabContextMenu = {
+@@ -9623,7 +9820,7 @@ var TabContextMenu = {
      );
      contextUnpinSelectedTabs.hidden =
        !this.contextTab.pinned || !this.multiselected;
diff --git a/src/zen/sessionstore/ZenWindowSync.sys.mjs b/src/zen/sessionstore/ZenWindowSync.sys.mjs
index 08eddfd32..f5054b6a3 100644
--- a/src/zen/sessionstore/ZenWindowSync.sys.mjs
+++ b/src/zen/sessionstore/ZenWindowSync.sys.mjs
@@ -54,8 +54,8 @@ class nsZenWindowSync {
    * Context about the currently handled event.
    * Used to avoid re-entrancy issues.
    *
-   * We do still wan't to keep a stack of these in order
-   * to handle consequtive events properly. For example,
+   * We do still want to keep a stack of these in order
+   * to handle consecutive events properly. For example,
    * loading a webpage will call IconChanged and TitleChanged
    * events one after another.
    */
@@ -137,13 +137,12 @@ class nsZenWindowSync {
     //   windows already exist
     let forcedSync = false;
     let hasUnsyncedArg = false;
-    for (let arg of aWindow.arguments) {
-      if (arg === 'zen-synced') {
-        forcedSync = true;
-      } else if (arg === 'zen-unsynced') {
-        hasUnsyncedArg = true;
-      }
+    if (aWindow._zenStartupSyncFlag === 'synced') {
+      forcedSync = true;
+    } else if (aWindow._zenStartupSyncFlag === 'unsynced') {
+      hasUnsyncedArg = true;
     }
+    delete aWindow._zenStartupSyncFlag;
     if (
       !forcedSync &&
       (hasUnsyncedArg ||
@@ -518,14 +517,14 @@ class nsZenWindowSync {
     }
     if (focus) {
       // Recalculate the focus in order to allow the user to continue typing
-      // inside the web contentx area without having to click outside and back in.
+      // inside the web content area without having to click outside and back in.
       aOurTab.linkedBrowser.blur();
       aOurTab.ownerGlobal.gBrowser._adjustFocusAfterTabSwitch(aOurTab);
     }
     // Ensure the tab's state is flushed after the swap. By doing this,
     // we can re-schedule another session store delayed process to fire.
     // It's also important to note that if we don't flush the state here,
-    // we would start recieving invalid history changes from the the incorrect
+    // we would start receiving invalid history changes from the the incorrect
     // browser view that was just swapped out.
     lazy.TabStateFlusher.flush(aOurTab.linkedBrowser);
   }
@@ -863,9 +862,9 @@ class nsZenWindowSync {
 
   on_TabGroupCreate(aEvent) {
     const tabGroup = aEvent.target;
-    if (tabGroup.id) {
+    if (tabGroup.id && tabGroup.alreadySynced) {
       // This tab group was opened as part of a sync operation.
-      console.log('Duplicate!');
+      return;
     }
     const window = tabGroup.ownerGlobal;
     const isFolder = tabGroup.isZenFolder;
@@ -876,6 +875,7 @@ class nsZenWindowSync {
         ? win.gZenFolders.createFolder([], {})
         : win.gBrowser.addTabGroup({ splitView: isSplitView });
       newGroup.id = tabGroup.id;
+      newGroup.alreadySynced = true;
       this.#syncItemWithOriginal(
         tabGroup,
         newGroup,
diff --git a/src/zen/tabs/ZenPinnedTabManager.mjs b/src/zen/tabs/ZenPinnedTabManager.mjs
index 3ef23aab1..820dc161d 100644
--- a/src/zen/tabs/ZenPinnedTabManager.mjs
+++ b/src/zen/tabs/ZenPinnedTabManager.mjs
@@ -90,9 +90,6 @@ class nsZenPinnedTabManager extends nsZenDOMOperatedFeature {
     const iconUrl = url ?? tab.iconImage.src;
     if (tab.hasAttribute('zen-essential')) {
       tab.style.setProperty('--zen-essential-tab-icon', `url(${iconUrl})`);
-      if (tab.hasAttribute('zen-essential')) {
-        tab.style.setProperty('--zen-essential-tab-icon', `url(${iconUrl})`);
-      }
     }
   }
 
diff --git a/src/zen/workspaces/ZenWorkspaces.mjs b/src/zen/workspaces/ZenWorkspaces.mjs
index 99ec1e86e..07f35da4b 100644
--- a/src/zen/workspaces/ZenWorkspaces.mjs
+++ b/src/zen/workspaces/ZenWorkspaces.mjs
@@ -837,7 +837,11 @@ class nsZenWorkspaces extends nsZenMultiWindowFeature {
   }
 
   get currentWindowIsSyncing() {
-    return !document.documentElement.hasAttribute('zen-unsynced-window') && !this.isPrivateWindow;
+    return (
+      !document.documentElement.hasAttribute('zen-unsynced-window') &&
+      window._zenStartupSyncFlag !== 'unsynced' &&
+      !this.isPrivateWindow
+    );
   }
 
   get privateWindowOrDisabled() {