diff --git a/client/public/data.js b/client/public/data.js
index 152af2b..39daafd 100644
--- a/client/public/data.js
+++ b/client/public/data.js
@@ -128,8 +128,9 @@ function addMessage({
 /**
  * Insert a system notice as a root‐level thread item.
  * @param {string} content — HTML or plain text for the notice
+ * @param {boolean} [shouldNotify=true] — whether to trigger a browser notification
  */
-function addNotice(content) {
+function addNotice(content, shouldNotify = true) {
   const ts = Math.floor(Date.now() / 1000);
   const id = String(noticeCounter--);
   threads.set(id, {
@@ -141,7 +142,7 @@ function addNotice(content) {
     children: [],
   });
   rootIds.push(id);
-  notifyNotice(content);
+  if (shouldNotify) notifyNotice(content);
 }
 
 /**
diff --git a/client/public/wsModule.js b/client/public/wsModule.js
index 27e4025..66514bf 100644
--- a/client/public/wsModule.js
+++ b/client/public/wsModule.js
@@ -87,6 +87,7 @@ export function initWebSocket(
         addUser(String(id), name);
         addNotice(
           `<span class="name">${new Option(name).innerHTML}</span> joined.`,
+          false,
         );
         const groups = getGroupedUsers();
         usersListEl.innerHTML = "Online: " + groups.join(", ");
@@ -98,6 +99,7 @@ export function initWebSocket(
         const lastName = users.get(sid) || name;
         addNotice(
           `<span class="name">${new Option(lastName).innerHTML}</span> left.`,
+          false,
         );
         removeUser(sid);
         const groups = getGroupedUsers();
@@ -200,7 +202,7 @@ export function initWebSocket(
   };
 
   socket.onclose = () => {
-    addNotice("Disconnected.");
+    addNotice("Disconnected.", false);
     renderChat(chatEl, inputContainer);
   };