diff --git a/src/background/announcements.ts b/src/background/announcements.ts
index 9888d4e..e3a4ba1 100644
--- a/src/background/announcements.ts
+++ b/src/background/announcements.ts
@@ -5,13 +5,16 @@ const getAnnouncements = async (): Promise<Record<string, boolean>> => {
   return announcements;
 };
 
-const addAnnouncement = async (announcement: string): Promise<void> => {
+const addAnnouncement = async (
+  announcement: string,
+  isActive: boolean
+): Promise<void> => {
   const announcements = await getAnnouncements();
   if (announcement in announcements) {
     return;
   }
   await chrome.storage.local.set({
-    [KEY]: { ...announcements, [announcement]: true },
+    [KEY]: { ...announcements, [announcement]: isActive },
   });
 };
 
diff --git a/src/background/index.ts b/src/background/index.ts
index 8401113..91ef7be 100644
--- a/src/background/index.ts
+++ b/src/background/index.ts
@@ -26,10 +26,10 @@ const extensionInitialization = initialize(registeredUrls);
 
 chrome.runtime.onInstalled.addListener(async ({ reason }) => {
   await extensionInitialization;
-  if (reason !== "update") {
+  if (reason !== "install" && reason !== "update") {
     return;
   }
-  await addAnnouncement("custom-domains");
+  await addAnnouncement("custom-domains", reason === "update");
   await refreshIcon();
 });