diff --git a/packages/app/src/Utils/Login/MultiAccountStore.ts b/packages/app/src/Utils/Login/MultiAccountStore.ts
index 850a34d8..f9687170 100644
--- a/packages/app/src/Utils/Login/MultiAccountStore.ts
+++ b/packages/app/src/Utils/Login/MultiAccountStore.ts
@@ -63,6 +63,10 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
 
   constructor() {
     super();
+    if (typeof ServiceWorkerGlobalScope !== "undefined" && self instanceof ServiceWorkerGlobalScope) {
+      // return if sw. we might want to use localForage (idb) to share keys between sw and app
+      return;
+    }
     const existing = window.localStorage.getItem(AccountStoreKey);
     if (existing) {
       const logins = JSON.parse(existing);
@@ -204,8 +208,8 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
       preferences: deepClone(DefaultPreferences),
     } as LoginSession;
 
-    if ("nostr_os" in window && window.nostr_os) {
-      window.nostr_os.saveKey(key.value);
+    if ("nostr_os" in window && window?.nostr_os) {
+      window?.nostr_os.saveKey(key.value);
       newSession.type = LoginSessionType.Nip7os;
       newSession.privateKeyData = undefined;
     }
diff --git a/packages/app/src/lang.json b/packages/app/src/lang.json
index 05cec75d..40278fb6 100644
--- a/packages/app/src/lang.json
+++ b/packages/app/src/lang.json
@@ -334,9 +334,6 @@
     "defaultMessage": "Parent",
     "description": "Link to parent note in thread"
   },
-  "AIgmDy": {
-    "defaultMessage": "Add up to 4 hashtags"
-  },
   "ALdW69": {
     "defaultMessage": "Note by {name}"
   },
@@ -1169,15 +1166,9 @@
   "d7d0/x": {
     "defaultMessage": "LN Address"
   },
-  "d8gpCh": {
-    "defaultMessage": "Try to use less than 5 hashtags to stay on topic 🙏"
-  },
   "dOQCL8": {
     "defaultMessage": "Display name"
   },
-  "ddd3JX": {
-    "defaultMessage": "Popular Hashtags"
-  },
   "deEeEI": {
     "defaultMessage": "Register"
   },
diff --git a/packages/app/src/service-worker.ts b/packages/app/src/service-worker.ts
index 9d03031b..0f754e40 100644
--- a/packages/app/src/service-worker.ts
+++ b/packages/app/src/service-worker.ts
@@ -31,12 +31,20 @@ registerRoute(
     cacheName: "image-cache",
     plugins: [
       new ExpirationPlugin({
-        maxEntries: 100,
+        maxEntries: 200,
       }),
     ],
   }),
 );
 
+registerRoute(
+  ({ url }) => url.pathname.endsWith("api/v1/preview"),
+  new StaleWhileRevalidate({
+    cacheName: "preview-cache",
+    plugins: [new ExpirationPlugin({ maxAgeSeconds: 4 * 60 * 60 })],
+  }),
+);
+
 self.addEventListener("message", event => {
   if (event.data && event.data.type === "SKIP_WAITING") {
     self.skipWaiting();
diff --git a/packages/app/src/translations/en.json b/packages/app/src/translations/en.json
index 260a622f..095d3e6a 100644
--- a/packages/app/src/translations/en.json
+++ b/packages/app/src/translations/en.json
@@ -110,7 +110,6 @@
   "9wO4wJ": "Lightning Invoice",
   "ABAQyo": "Chats",
   "ADmfQT": "Parent",
-  "AIgmDy": "Add up to 4 hashtags",
   "ALdW69": "Note by {name}",
   "AN0Z7Q": "Muted Words",
   "ASRK0S": "This author has been muted",
@@ -385,9 +384,7 @@
   "d+6YsV": "Lists to mute:",
   "d2ebEu": "Not Subscribed to Push",
   "d7d0/x": "LN Address",
-  "d8gpCh": "Try to use less than 5 hashtags to stay on topic 🙏",
   "dOQCL8": "Display name",
-  "ddd3JX": "Popular Hashtags",
   "deEeEI": "Register",
   "djLctd": "Amount in sats",
   "djNL6D": "Read-only",