diff --git a/src/components/NoteList/index.tsx b/src/components/NoteList/index.tsx
index 57e9bb95..c5d4f24e 100644
--- a/src/components/NoteList/index.tsx
+++ b/src/components/NoteList/index.tsx
@@ -1018,7 +1018,7 @@ const NoteList = forwardRef(
 
       if (feedPaintSessionPendingRef.current) {
         feedPaintSessionPendingRef.current = false
-        logger.info('[FeedPaint] Session cache committed (DOM)', {
+        logger.debug('[FeedPaint] Session cache committed (DOM)', {
           feedKey: feedKeyShort,
           snapshotKey: snapshotKeyShort,
           eventCount: events.length,
@@ -1030,7 +1030,7 @@ const NoteList = forwardRef(
         feedPaintRelayPendingRef.current = false
         const meta = feedPaintRelayMetaRef.current
         feedPaintRelayMetaRef.current = null
-        logger.info('[FeedPaint] Relay/network results committed (DOM)', {
+        logger.debug('[FeedPaint] Relay/network results committed (DOM)', {
           feedKey: feedKeyShort,
           snapshotKey: snapshotKeyShort,
           committedEventCount: events.length,
diff --git a/src/lib/error-suppression.ts b/src/lib/error-suppression.ts
index 808a6941..e03e92c2 100644
--- a/src/lib/error-suppression.ts
+++ b/src/lib/error-suppression.ts
@@ -18,11 +18,14 @@ export function suppressExpectedErrors() {
       return
     }
     
-    // Suppress CORS errors for external websites
-    if (message.includes('CORS policy') || 
+    // Suppress CORS errors for external websites (EN + DE Firefox strings)
+    if (message.includes('CORS policy') ||
         message.includes('Access-Control-Allow-Origin') ||
         message.includes('has been blocked by CORS policy') ||
         message.includes('blocked by CORS policy') ||
+        message.includes('Quellübergreifende') ||
+        message.includes('Gleiche-Quelle-Regel') ||
+        message.includes('Cross-Origin') && message.includes('blockiert') ||
         (message.includes('Access to fetch at') && message.includes('has been blocked')) ||
         (message.includes('from origin') && message.includes('has been blocked'))) {
       return
@@ -128,7 +131,20 @@ export function suppressExpectedErrors() {
         (message.includes('fehlgeschlagen') && message.includes('URI')) ||
         message.includes('Laden der Medienressource') ||
         message.includes('Failed to load media resource') ||
-        message.includes('OpaqueResponseBlocking')) {
+        message.includes('OpaqueResponseBlocking') ||
+        (message.includes('image/svg+xml') &&
+          (message.includes('nicht unterstützt') ||
+            message.includes('Keine Decoder') ||
+            message.includes('Medien können nicht'))) ||
+        message.includes('A resource is blocked by OpaqueResponseBlocking')) {
+      return
+    }
+
+    // Firefox: failed WS to dead local/dev relays (wording varies by locale)
+    if (
+      message.includes('kann keine Verbindung') &&
+      (message.includes('WebSocket') || message.includes('ws://') || message.includes('wss://'))
+    ) {
       return
     }
     
@@ -158,7 +174,31 @@ export function suppressExpectedErrors() {
         message.includes('Medienressource') ||
         (message.includes('fehlgeschlagen') && message.includes('URI')) ||
         message.includes('Laden der Medienressource') ||
-        message.includes('Failed to load media resource')) {
+        message.includes('Failed to load media resource') ||
+        message.includes('OpaqueResponseBlocking') ||
+        message.includes('A resource is blocked by OpaqueResponseBlocking') ||
+        (message.includes('image/svg+xml') &&
+          (message.includes('nicht unterstützt') ||
+            message.includes('Keine Decoder') ||
+            message.includes('Medien können nicht')))) {
+      return
+    }
+
+    // German Firefox CORS (same-origin policy)
+    if (message.includes('Quellübergreifende') ||
+        message.includes('Gleiche-Quelle-Regel') ||
+        (message.includes('Cross-Origin') && message.includes('blockiert'))) {
+      return
+    }
+
+    if (
+      message.includes('kann keine Verbindung') &&
+      (message.includes('WebSocket') || message.includes('ws://') || message.includes('wss://'))
+    ) {
+      return
+    }
+
+    if (message.includes('NS_BINDING_ABORTED')) {
       return
     }
     
@@ -187,11 +227,14 @@ export function suppressExpectedErrors() {
       return
     }
     
-    // Suppress CORS policy warnings
-    if (message.includes('CORS policy') || 
+    // Suppress CORS policy warnings (EN + DE)
+    if (message.includes('CORS policy') ||
         message.includes('Access-Control-Allow-Origin') ||
         message.includes('has been blocked by CORS policy') ||
         message.includes('blocked by CORS policy') ||
+        message.includes('Quellübergreifende') ||
+        message.includes('Gleiche-Quelle-Regel') ||
+        (message.includes('Cross-Origin') && message.includes('blockiert')) ||
         (message.includes('Access to fetch') && message.includes('blocked')) ||
         (message.includes('from origin') && message.includes('blocked'))) {
       return
@@ -222,7 +265,8 @@ export function suppressExpectedErrors() {
     if (message.includes('NOTICE from') ||
         message.includes('Too many subscriptions') ||
         message.includes('Subscription rejected') ||
-        message.includes('too many concurrent REQs')) {
+        message.includes('too many concurrent REQs') ||
+        message.includes('too many kinds')) {
       return
     }
 
@@ -255,7 +299,13 @@ export function suppressExpectedErrors() {
     if (message.includes('NOTICE from') ||
         message.includes('Too many subscriptions') ||
         message.includes('Subscription rejected') ||
-        message.includes('too many concurrent REQs')) {
+        message.includes('too many concurrent REQs') ||
+        message.includes('too many kinds')) {
+      return
+    }
+
+    // Nostr browser extensions (signing / debug)
+    if (message.includes('[nos2x') || message.includes('nos2x-fox:')) {
       return
     }
     
diff --git a/src/lib/index-relay-http.ts b/src/lib/index-relay-http.ts
index 7325b96d..237f8bf2 100644
--- a/src/lib/index-relay-http.ts
+++ b/src/lib/index-relay-http.ts
@@ -90,7 +90,7 @@ function maybeLogDevIndexRelayUnreachableHint(): void {
   const now = Date.now()
   if (now - lastDevIndexRelayTransportHintAt < DEV_INDEX_RELAY_TRANSPORT_HINT_MS) return
   lastDevIndexRelayTransportHintAt = now
-  logger.info(
+  logger.debug(
     'HTTP index relay is unreachable in dev. Start the relay, or set VITE_DEV_INDEX_RELAY_TARGET if it is not on the default URL.'
   )
 }
diff --git a/src/providers/NostrProvider/index.tsx b/src/providers/NostrProvider/index.tsx
index 0e13b3d9..b021f3de 100644
--- a/src/providers/NostrProvider/index.tsx
+++ b/src/providers/NostrProvider/index.tsx
@@ -140,7 +140,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
 
   useEffect(() => {
     const init = async () => {
-      logger.info('[NostrProvider] Restoring session (login / first account)…')
+      logger.debug('[NostrProvider] Restoring session (login / first account)…')
       if (hasNostrLoginHash()) {
         return await loginByNostrLoginHash()
       }
@@ -153,7 +153,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
     }
     init()
       .then(() => {
-        logger.info('[NostrProvider] Session restore finished; feeds and UI can initialize')
+        logger.debug('[NostrProvider] Session restore finished; feeds and UI can initialize')
         setIsInitialized(true)
       })
       .catch((e) => {
@@ -221,7 +221,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
 
       hydrationGenForThisRun = accountHydrationGenerationRef.current += 1
       setIsAccountSessionHydrating(true)
-      logger.info('[NostrProvider] Account session hydrate: loading cache and relays…', {
+      logger.debug('[NostrProvider] Account session hydrate: loading cache and relays…', {
         pubkeySlice: account.pubkey.slice(0, 12),
         hydrationGen: hydrationGenForThisRun
       })
@@ -639,11 +639,11 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
 
         storage.setAccountNetworkHydrateAt(account.pubkey, Date.now())
         void client.runSessionPrewarm({ pubkey: account.pubkey, signal: controller.signal })
-        logger.info('[NostrProvider] Account session hydrate: core relay/profile merge finished; client prewarm started (parallel)', {
+        logger.debug('[NostrProvider] Account session hydrate: core relay/profile merge finished; client prewarm started (parallel)', {
           pubkeySlice: account.pubkey.slice(0, 12)
         })
       } else {
-        logger.info('[NostrProvider] Skipped network hydrate (within min interval); IndexedDB cache only', {
+        logger.debug('[NostrProvider] Skipped network hydrate (within min interval); IndexedDB cache only', {
           pubkeySlice: account.pubkey.slice(0, 12),
           lastNetworkHydrateAt,
           ageMs: Date.now() - (lastNetworkHydrateAt ?? 0)
diff --git a/src/services/client.service.ts b/src/services/client.service.ts
index 39045b91..fe450cae 100644
--- a/src/services/client.service.ts
+++ b/src/services/client.service.ts
@@ -1700,7 +1700,7 @@ class ClientService extends EventTarget {
   ) {
     const timelineBatchId = `tl-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 9)}`
     const timelineT0 = performance.now()
-    logger.info('[RelayOp] timeline_wave_begin', {
+    logger.debug('[RelayOp] timeline_wave_begin', {
       timelineBatchId,
       shardCount: subRequests.length,
       relayCountsPerShard: subRequests.map((r) => r.urls.length),
diff --git a/src/services/relay-operation-log.service.ts b/src/services/relay-operation-log.service.ts
index aa923dc6..ac73f273 100644
--- a/src/services/relay-operation-log.service.ts
+++ b/src/services/relay-operation-log.service.ts
@@ -135,7 +135,7 @@ function groupTerminalsByOutcome(rows: RelayOpTerminalRow[]): Record<string, { c
  * Tracks one logical subscribe/query wave: one `batch_begin` and one `batch_end` with per-relay outcomes.
  */
 export type RelaySubscribeOpBatchOptions = {
-  /** `debug` hides high-volume query REQs unless jumble-debug / VITE_DEBUG is on. */
+  /** `info` logs every REQ wave at INFO; default `debug` keeps subscribe noise behind jumble-debug / VITE_DEBUG. */
   logLevel?: 'info' | 'debug'
   /** Invoked once when this REQ wave finishes (same `rows` as `batch_end` / `terminals`). */
   onBatchEnd?: (rows: RelayOpTerminalRow[]) => void
@@ -190,7 +190,7 @@ export class RelaySubscribeOpBatch {
     this.t0 = typeof performance !== 'undefined' ? performance.now() : Date.now()
     this.source = source
     this.grouped = grouped
-    this.logLevel = options?.logLevel ?? 'info'
+    this.logLevel = options?.logLevel ?? 'debug'
     this.onBatchEnd = options?.onBatchEnd
   }
 
@@ -329,7 +329,7 @@ export class RelayPublishOpBatch {
   }
 
   logBegin(): void {
-    logger.info('[RelayOp] publish_batch_begin', {
+    logger.debug('[RelayOp] publish_batch_begin', {
       batchId: this.batchId,
       source: this.source,
       eventId: this.eventId,
@@ -370,7 +370,7 @@ export class RelayPublishOpBatch {
           ]
             .filter(Boolean)
             .join('\n')
-    logger.info('[RelayOp] publish_batch_end', {
+    logger.debug('[RelayOp] publish_batch_end', {
       batchId: this.batchId,
       source: this.source,
       eventId: this.eventId,