--- a/mobile/android/chrome/content/browser.js
+++ b/mobile/android/chrome/content/browser.js
@@ -8044,19 +8044,20 @@ var MemoryObserver = {
     let browser = tab.browser;
     let data = browser.__SS_data;
     let extra = browser.__SS_extdata;
 
     // We need this data to correctly create and position the new browser
     // If this browser is already a zombie, fallback to the session data
     let currentURL = browser.__SS_restore ? data.entries[0].url : browser.currentURI.spec;
     let sibling = browser.nextSibling;
+    let isPrivate = PrivateBrowsingUtils.isWindowPrivate(browser.contentWindow);
 
     tab.destroy();
-    tab.create(currentURL, { sibling: sibling, zombifying: true, delayLoad: true });
+    tab.create(currentURL, { sibling: sibling, zombifying: true, delayLoad: true, isPrivate: isPrivate });
 
     // Reattach session store data and flag this browser so it is restored on select
     browser = tab.browser;
     browser.__SS_data = data;
     browser.__SS_extdata = extra;
     browser.__SS_restore = true;
   },