From 16b898f4e02a811a17e02fc55cd9091c8e4731ea Mon Sep 17 00:00:00 2001
From: Andrey Bochkarev <50177704+octaviusz@users.noreply.github.com>
Date: Thu, 26 Feb 2026 21:36:59 +0300
Subject: [PATCH] fix: Prevent unnecessary layout reset when new tabs are
 added, p=#12535

---
 src/zen/split-view/ZenViewSplitter.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/zen/split-view/ZenViewSplitter.mjs b/src/zen/split-view/ZenViewSplitter.mjs
index d95a8e68f..d1cd28fef 100644
--- a/src/zen/split-view/ZenViewSplitter.mjs
+++ b/src/zen/split-view/ZenViewSplitter.mjs
@@ -1263,7 +1263,7 @@ class nsZenViewSplitter extends nsZenDOMOperatedFeature {
         if (group.tabs.length >= this.MAX_TABS) {
           return;
         }
-        if (gridTypeChange || !newTabsAdded) {
+        if (gridTypeChange && !newTabsAdded) {
           // reset layout
           group.gridType = gridType;
           group.layoutTree = this.calculateLayoutTree(