From c19a5c3e41fe07a1a9b79d7b906b5ededa8c766d Mon Sep 17 00:00:00 2001
From: Gaming4JC <g4jc@hyperbola.info>
Date: Sat, 9 Jan 2021 13:44:07 -0500
Subject: Backport Basilisk #17 - Reinstate erroneously removed unload event
 listener

---
 base/content/tab-content.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/base/content/tab-content.js b/base/content/tab-content.js
index 000683a..2eae5d3 100644
--- a/base/content/tab-content.js
+++ b/base/content/tab-content.js
@@ -860,6 +860,10 @@ var RefreshBlocker = {
 
 RefreshBlocker.init();
 
+addEventListener("unload", () => {
+  RefreshBlocker.uninit();
+});
+
 addMessageListener("AllowScriptsToClose", () => {
   content.QueryInterface(Ci.nsIInterfaceRequestor)
          .getInterface(Ci.nsIDOMWindowUtils)
-- 
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