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-rw-r--r--modules/libpref/init/all.js3
1 files changed, 1 insertions, 2 deletions
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 443fb3def..21e36bf16 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -213,8 +213,7 @@ pref("dom.requestIdleCallback.enabled", true);
// Enable Intersection Observers
// See WD https://www.w3.org/TR/intersection-observer/
-// Disabled for now because of crashes. See #934 and #935
-pref("dom.IntersectionObserver.enabled", false);
+pref("dom.IntersectionObserver.enabled", true);
// Whether the Gamepad API is enabled
pref("dom.gamepad.enabled", true);