fixed issu #1400

background.js

@@ -196,25 +196,21 @@ chrome.runtime.onMessage.addListener(function (message, sender, sendResponse) {
   if (action === "play") {
     chrome.tabs.query({}, function (tabs) {
       if (tabs.length > prevTabsLength) {
-        prevTabsLength = tabs.length;
-        for (var i = 0, l = tabs.length; i < l; i++) {
-          var tab = tabs[i];
-          chrome.tabs.sendMessage(tab.id, {
-            action: "new-tab-opened",
-          });
-        }
-      } else {
-        prevTabsLength = tabs.length;
-      }
-      for (var i = 0, l = tabs.length; i < l; i++) {
-        var tab = tabs[i];
-
-        if (sender.tab.id !== tab.id) {
-          chrome.tabs.sendMessage(tab.id, {
-            action: "another-video-started-playing",
-          });
-        }
-      }
+        prevTabsLength++;
+      } else if (tabs.length < prevTabsLength){
+        prevTabsLength--;
+      }else{
+		  for (var i = 0, l = tabs.length; i < l; i++) {
+			prevTabsLength = tabs.length;
+			var tab = tabs[i];
+
+			if (sender.tab.id !== tab.id) {
+			  chrome.tabs.sendMessage(tab.id, {
+				action: "another-video-started-playing",
+			  });
+			}
+		  }
+	  }
     });
 	} else if (action === 'options-page-connected') {
 		sendResponse({

content-scripts/extension-context/init.js

@@ -80,7 +80,7 @@ document.addEventListener('DOMContentLoaded', function () {
 
 	bodyReady();
 });
-let prevRequestAction = "";
+
 chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
 	if (request.action === 'focus') {
 		extension.messages.send({
@@ -112,16 +112,11 @@ chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
 		extension.messages.send({
 			deleteCookies: true
 		});
-	} else if (
-		request.action === "another-video-started-playing" &&
-		prevRequestAction === "new-tab-opened"
-	  ) {
-		console.log("Continue playing");
-	  } else if (request.action === "another-video-started-playing") {
+	}  else if (request.action === "another-video-started-playing") {
 		extension.features.onlyOnePlayerInstancePlaying();
 	  }
 
-	  prevRequestAction = request.action;
+
 });
 
 document.addEventListener('it-message-from-youtube', function () {

content-scripts/website-context/core.js

@@ -181,6 +181,9 @@ document.addEventListener('it-message-from-extension', function () {
 			}
 		}
 	}
+	if(ImprovedTube.storage.only_one_player_instance_playing === true){
+		ImprovedTube.storage = {...ImprovedTube.storage, player_autoplay: false, playlist_autoplay: false}
+	}
 });
 
 /*--------------------------------------------------------------

content-scripts/website-context/youtube-features/appearance.js

@@ -284,11 +284,9 @@ ImprovedTube.channelVideosCount = function () {
 4.2.3.3 DESCRIPTION
 ------------------------------------------------------------------------------*/
 
-ImprovedTube.description = function () {
+ImprovedTube.description = function (el) {
     if (this.storage.description === "expanded") {
-        document.querySelector("#more").click();
-    }else if(this.storage.description === "normal"){
-        document.querySelector("#less").click();
+        el.click();
     }
 };