From cb7fc0d95f261c9de9b91173aedc3121bc9bec84 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Mon, 2 Jul 2018 10:31:11 +0200
Subject: [PATCH] Disable Intersection Observers by default.

This draft implementation does not play nice with several large sites (e.g. Facebook).
---
 modules/libpref/init/all.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 20e8bca0ea..f66f64bec3 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -210,7 +210,7 @@ pref("dom.requestIdleCallback.enabled", true);
 
 // Enable Intersection Observers
 // See WD https://w3c.github.io/IntersectionObserver/
-pref("dom.IntersectionObserver.enabled", true);
+pref("dom.IntersectionObserver.enabled", false);
 
 // Whether the Gamepad API is enabled
 pref("dom.gamepad.enabled", true);