src/contentScript.js

@@ -166,30 +166,20 @@ function restoreScrollability() {
 	*/
 function startConstantVigilance() {
 // 	console.log("startConstantVigilance");
-	var observer;
+	var observer = new MutationObserver((mutationsList, observer) => {
-	var starter = function() {
-		observer.observe(document.querySelector("html"), {
-			attributes: true,
-			childList: true,
-			subtree: true
-		});
-	};
-
-	observer = new MutationObserver((mutationsList, observer) => {
-		// Workaround for Firefox performance bug. Firefox does not properly
-		// coalesce mutations into the mutationsList, instead calling the
-		// callback potentially thousands of times. Therefore we must
-		// disconnect the observer, wait for the main thread to become idle,
-		// and then restart it.
-		observer.disconnect();
 		window.requestIdleCallback(() => {
-			killSticky();
+			for (var mutation of mutationsList) {
-			starter();
+				killSticky(mutation.target);
-		}, {timeout: 1000});
+			}
+		});
 	});
 
 	console.log("Commencing vigilance for stickies!");
-	starter();
+	observer.observe(document.querySelector("html"), {
+		attributes: true, 
+		childList: true, 
+		subtree: true
+	});
 }
 
 /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
@@ -202,7 +192,7 @@ function beginKillingStickies() {
 	window.requestIdleCallback(() => {
 		killSticky();
 		startConstantVigilance();
-	}, {timeout: 1000});
+	});
 }
 
 /******************/

src/platform/chrome/manifest.json

@@ -1,7 +1,7 @@
 {
 	"manifest_version":	2,
 	"name":				"AlwaysKillSticky",
-	"version":			"1.3.1",
+	"version":			"1.3.0",
 	"description":		"Get rid of sticky elements on websites - permanently!",
 	"author":			"Said Achmiz",
 	"homepage_url":		"https://git.sr.ht/~achmizs/AlwaysKillSticky.git",

src/platform/firefox/manifest.json

@@ -1,7 +1,7 @@
 {
 	"manifest_version":				2,
 	"name":							"AlwaysKillSticky",
-	"version":						"1.3.1",
+	"version":						"1.3.0",
 	"description":					"Get rid of sticky elements on websites - permanently!",
 	"author":						"Said Achmiz",
 	"browser_specific_settings":	{