diff --git a/browser/components/sessionstore/SessionFile.sys.mjs b/browser/components/sessionstore/SessionFile.sys.mjs
index 31140cb8be3b529a0952ca8dc55165690b0e2120..605c9e0aa84da0a2d3171a0573e8cd95e27bd0c4 100644
--- a/browser/components/sessionstore/SessionFile.sys.mjs
+++ b/browser/components/sessionstore/SessionFile.sys.mjs
@@ -22,6 +22,7 @@ ChromeUtils.defineESModuleGetters(lazy, {
   RunState: "resource:///modules/sessionstore/RunState.sys.mjs",
   SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
   SessionWriter: "resource:///modules/sessionstore/SessionWriter.sys.mjs",
+  ZenSessionStore: "resource:///modules/zen/ZenSessionManager.sys.mjs",
 });
 
 const PREF_UPGRADE_BACKUP = "browser.sessionstore.upgradeBackup.latestBuildID";
@@ -380,7 +381,7 @@ var SessionFileInternal = {
     this._readOrigin = result.origin;
 
     result.noFilesFound = noFilesFound;
-
+    await lazy.ZenSessionStore.readFile();
     return result;
   },