diff --git a/src/components/ConnectedRelays/ActiveRelaysTitlebarButton.tsx b/src/components/ConnectedRelays/ActiveRelaysTitlebarButton.tsx
index 7bff047e..6741c0b8 100644
--- a/src/components/ConnectedRelays/ActiveRelaysTitlebarButton.tsx
+++ b/src/components/ConnectedRelays/ActiveRelaysTitlebarButton.tsx
@@ -19,9 +19,25 @@ import { useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import RelayIcon from '../RelayIcon'
 
+function rowMuted(connected: boolean, sessionStriked: boolean) {
+  return !connected || sessionStriked
+}
+
+function rowTitle(
+  url: string,
+  connected: boolean,
+  sessionStriked: boolean,
+  t: (k: string) => string
+) {
+  const base = simplifyUrl(url)
+  if (sessionStriked) return `${base} — ${t('Relay session striked')}`
+  if (!connected) return `${base} — ${t('Not connected')}`
+  return base
+}
+
 /**
  * Same interaction pattern as {@link SeenOnButton}: Server + counts, menu lists relays with {@link RelayIcon}.
- * Shows favorites + default/inbox relays; disconnected sockets are muted.
+ * Shows favorites + default/inbox relays; disconnected or session-striked relays are muted.
  */
 export function ActiveRelaysTitlebarButton() {
   const { t } = useTranslation()
@@ -52,8 +68,8 @@ export function ActiveRelaysTitlebarButton() {
     </Button>
   )
 
-  const rowClass = (connected: boolean) =>
-    cn(!connected && 'opacity-45 text-muted-foreground')
+  const rowClass = (connected: boolean, sessionStriked: boolean) =>
+    cn(rowMuted(connected, sessionStriked) && 'opacity-45 text-muted-foreground')
 
   if (isSmallScreen) {
     return (
@@ -70,12 +86,12 @@ export function ActiveRelaysTitlebarButton() {
               <DrawerTitle>{t('Active relays')}</DrawerTitle>
             </DrawerHeader>
             <div className="min-h-0 flex-1 overflow-y-auto overscroll-contain px-1 py-2 pb-4">
-              {rows.map(({ url, connected }) => (
+              {rows.map(({ url, connected, sessionStriked }) => (
                 <Button
-                  className={cn('h-auto w-full justify-start gap-3 p-4 text-base', rowClass(connected))}
+                  className={cn('h-auto w-full justify-start gap-3 p-4 text-base', rowClass(connected, sessionStriked))}
                   variant="ghost"
                   key={url}
-                  title={connected ? simplifyUrl(url) : `${simplifyUrl(url)} — ${t('Not connected')}`}
+                  title={rowTitle(url, connected, sessionStriked, t)}
                   onClick={() => {
                     setDrawerOpen(false)
                     setTimeout(() => push(toRelay(url)), 50)
@@ -98,12 +114,12 @@ export function ActiveRelaysTitlebarButton() {
       <DropdownMenuContent align="end">
         <DropdownMenuLabel>{t('Active relays')}</DropdownMenuLabel>
         <DropdownMenuSeparator />
-        {rows.map(({ url, connected }) => (
+        {rows.map(({ url, connected, sessionStriked }) => (
           <DropdownMenuItem
             key={url}
-            title={connected ? simplifyUrl(url) : `${simplifyUrl(url)} — ${t('Not connected')}`}
+            title={rowTitle(url, connected, sessionStriked, t)}
             onClick={() => push(toRelay(url))}
-            className={cn('min-w-52 gap-2', rowClass(connected))}
+            className={cn('min-w-52 gap-2', rowClass(connected, sessionStriked))}
           >
             <RelayIcon url={url} />
             {simplifyUrl(url)}
diff --git a/src/components/ConnectedRelays/ConnectedRelaysSidebarStrip.tsx b/src/components/ConnectedRelays/ConnectedRelaysSidebarStrip.tsx
index 30df026b..feb846f9 100644
--- a/src/components/ConnectedRelays/ConnectedRelaysSidebarStrip.tsx
+++ b/src/components/ConnectedRelays/ConnectedRelaysSidebarStrip.tsx
@@ -17,8 +17,24 @@ import RelayIcon from '../RelayIcon'
 
 const MAX_ICONS = 14
 
-function rowMenuClass(connected: boolean) {
-  return cn(!connected && 'opacity-50 text-muted-foreground')
+function rowMuted(connected: boolean, sessionStriked: boolean) {
+  return !connected || sessionStriked
+}
+
+function rowMenuClass(connected: boolean, sessionStriked: boolean) {
+  return cn(rowMuted(connected, sessionStriked) && 'opacity-50 text-muted-foreground')
+}
+
+function rowTitle(
+  url: string,
+  connected: boolean,
+  sessionStriked: boolean,
+  t: (k: string) => string
+) {
+  const base = simplifyUrl(url)
+  if (sessionStriked) return `${base} — ${t('Relay session striked')}`
+  if (!connected) return `${base} — ${t('Not connected')}`
+  return base
 }
 
 /**
@@ -47,13 +63,11 @@ export function ConnectedRelaysSidebarStrip({ className }: { className?: string
         {t('Active relays')}
       </p>
       <div className="flex flex-wrap justify-center gap-1 xl:justify-start">
-        {shown.map(({ url, connected }) => (
+        {shown.map(({ url, connected, sessionStriked }) => (
           <span
             key={url}
-            title={
-              connected ? simplifyUrl(url) : `${simplifyUrl(url)} — ${t('Not connected')}`
-            }
-            className={cn('inline-flex', !connected && 'opacity-40 grayscale')}
+            title={rowTitle(url, connected, sessionStriked, t)}
+            className={cn('inline-flex', rowMuted(connected, sessionStriked) && 'opacity-40 grayscale')}
           >
             <RelayIcon url={url} className="h-5 w-5" iconSize={11} />
           </span>
@@ -77,11 +91,11 @@ export function ConnectedRelaysSidebarStrip({ className }: { className?: string
                 {t('More relays', { count: overflow })}
               </DropdownMenuLabel>
               <DropdownMenuSeparator />
-              {overflowRows.map(({ url, connected }) => (
+              {overflowRows.map(({ url, connected, sessionStriked }) => (
                 <DropdownMenuItem
                   key={url}
-                  className={cn('min-w-0 gap-2', rowMenuClass(connected))}
-                  title={connected ? simplifyUrl(url) : `${simplifyUrl(url)} — ${t('Not connected')}`}
+                  className={cn('min-w-0 gap-2', rowMenuClass(connected, sessionStriked))}
+                  title={rowTitle(url, connected, sessionStriked, t)}
                   onClick={() => push(toRelay(url))}
                 >
                   <RelayIcon url={url} className="h-5 w-5 shrink-0" iconSize={11} />
diff --git a/src/hooks/useRelayConnectionRows.ts b/src/hooks/useRelayConnectionRows.ts
index de6e17c4..bb670c7e 100644
--- a/src/hooks/useRelayConnectionRows.ts
+++ b/src/hooks/useRelayConnectionRows.ts
@@ -2,7 +2,7 @@ import { DEFAULT_FAVORITE_RELAYS, FAST_READ_RELAY_URLS } from '@/constants'
 import { normalizeAnyRelayUrl } from '@/lib/url'
 import { useNostr } from '@/providers/NostrProvider'
 import { useFavoriteRelays } from '@/providers/FavoriteRelaysProvider'
-import client from '@/services/client.service'
+import client, { JUMBLE_SESSION_RELAY_STRIKES_CHANGED } from '@/services/client.service'
 import { useEffect, useMemo, useState } from 'react'
 
 const POLL_MS = 1500
@@ -27,14 +27,22 @@ function mergeUniquePreserveOrder(...lists: (readonly string[] | undefined)[]):
   return out
 }
 
-export type TRelayConnectionRow = { url: string; connected: boolean }
+export type TRelayConnectionRow = {
+  url: string
+  /** WebSocket in the pool is open. */
+  connected: boolean
+  /** Session strike threshold reached — app skips this relay for reads/publishes until cleared. */
+  sessionStriked: boolean
+}
 
 /**
  * Relays to show in “active relays” UI: favorites + NIP-65 read/write + defaults + fast-read,
- * then any pool-connected URL not already listed. {@link row.connected} reflects the live WebSocket.
+ * then any pool-connected URL not already listed. {@link row.connected} reflects the live WebSocket;
+ * {@link row.sessionStriked} reflects {@link client.isSessionRelayStrikedForReads}.
  */
 export function useRelayConnectionRows(): {
   rows: TRelayConnectionRow[]
+  /** Relays that are both socket-connected and not session-striked (usable for REQs this session). */
   connectedCount: number
 } {
   const { relayList } = useNostr()
@@ -42,6 +50,7 @@ export function useRelayConnectionRows(): {
   const [connectedCanon, setConnectedCanon] = useState<Set<string>>(() =>
     new Set(client.getConnectedRelayUrls().map(canon))
   )
+  const [strikesEpoch, setStrikesEpoch] = useState(0)
 
   useEffect(() => {
     const tick = () => setConnectedCanon(new Set(client.getConnectedRelayUrls().map(canon)))
@@ -50,6 +59,12 @@ export function useRelayConnectionRows(): {
     return () => clearInterval(id)
   }, [])
 
+  useEffect(() => {
+    const bump = () => setStrikesEpoch((n) => n + 1)
+    window.addEventListener(JUMBLE_SESSION_RELAY_STRIKES_CHANGED, bump)
+    return () => window.removeEventListener(JUMBLE_SESSION_RELAY_STRIKES_CHANGED, bump)
+  }, [])
+
   return useMemo(() => {
     const inbox = [...(relayList?.read ?? []), ...(relayList?.write ?? [])]
     const base = mergeUniquePreserveOrder(
@@ -60,18 +75,23 @@ export function useRelayConnectionRows(): {
     )
     const baseCanon = new Set(base.map(canon))
 
-    const rows: TRelayConnectionRow[] = base.map((url) => ({
+    const rowFor = (url: string, socketConnected: boolean): TRelayConnectionRow => ({
       url,
-      connected: connectedCanon.has(canon(url))
-    }))
+      connected: socketConnected,
+      sessionStriked: client.isSessionRelayStrikedForReads(url)
+    })
+
+    const rows: TRelayConnectionRow[] = base.map((url) =>
+      rowFor(url, connectedCanon.has(canon(url)))
+    )
 
     for (const url of client.getConnectedRelayUrls()) {
       const k = canon(url)
       if (baseCanon.has(k)) continue
-      rows.push({ url, connected: true })
+      rows.push(rowFor(url, true))
     }
 
-    const connectedCount = rows.filter((r) => r.connected).length
+    const connectedCount = rows.filter((r) => r.connected && !r.sessionStriked).length
     return { rows, connectedCount }
-  }, [favoriteRelays, relayList?.read, relayList?.write, connectedCanon])
+  }, [favoriteRelays, relayList?.read, relayList?.write, connectedCanon, strikesEpoch])
 }
diff --git a/src/i18n/locales/de.ts b/src/i18n/locales/de.ts
index e9c672f0..83b2a2ca 100644
--- a/src/i18n/locales/de.ts
+++ b/src/i18n/locales/de.ts
@@ -533,6 +533,7 @@ export default {
     'Seen on': 'Gesehen auf',
     'Active relays': 'Aktive Relays',
     'Not connected': 'Nicht verbunden',
+    'Relay session striked': 'Diese Sitzung übersprungen (zu viele Verbindungsfehler)',
     'More relays': '+{{count}} Relays',
     'Temporarily display this reply': 'Antwort vorübergehend anzeigen',
     'Note not found': 'Die Notiz wurde nicht gefunden',
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index b312561f..c92ef636 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -529,6 +529,7 @@ export default {
     'Seen on': 'Seen on',
     'Active relays': 'Active relays',
     'Not connected': 'Not connected',
+    'Relay session striked': 'Skipped this session (too many connection failures)',
     'More relays': '+{{count}} relays',
     'Temporarily display this reply': 'Temporarily display this reply',
     'Note not found': 'Note not found',
diff --git a/src/lib/error-suppression.ts b/src/lib/error-suppression.ts
index 6355c0c8..6076e15f 100644
--- a/src/lib/error-suppression.ts
+++ b/src/lib/error-suppression.ts
@@ -6,18 +6,96 @@
 // Track suppressed errors to avoid spam
 const suppressedErrors = new Set<string>()
 
+/** Flatten console args so URLs and Error messages are visible (join(' ') loses nested fields). */
+function formatConsoleArgs(args: readonly unknown[]): string {
+  const parts: string[] = []
+  for (const a of args) {
+    if (typeof a === 'string') {
+      parts.push(a)
+    } else if (a instanceof Error) {
+      parts.push(a.message, a.stack ?? '')
+    } else if (a !== null && typeof a === 'object') {
+      const o = a as Record<string, unknown>
+      if (typeof o.message === 'string') parts.push(o.message)
+      if (typeof o.reason === 'string') parts.push(o.reason)
+      if (typeof o.url === 'string') parts.push(o.url)
+    } else {
+      parts.push(String(a))
+    }
+  }
+  return parts.join(' ')
+}
+
+function isExpectedFaviconNetworkNoise(message: string): boolean {
+  if (!message.includes('favicon.ico')) return false
+  return (
+    message.includes('NS_BINDING') ||
+    message.includes('aborted') ||
+    message.includes('ORB') ||
+    message.includes('CORRUPTED') ||
+    message.includes('404') ||
+    message.includes('403') ||
+    message.includes('blockiert') ||
+    message.includes('blocked') ||
+    message.includes('CORS') ||
+    message.includes('Failed to load') ||
+    message.includes('Laden fehlgeschlagen') ||
+    message.includes('net::ERR_')
+  )
+}
+
+function isExpectedRelayWebSocketNoise(message: string): boolean {
+  if (message.includes('WebSocket connection to') || message.includes('Close received after close')) {
+    return true
+  }
+  // Firefox EN (straight and curly apostrophe)
+  if (
+    (message.includes('establish a connection to the server') ||
+      message.includes('Firefox can') ||
+      message.includes('Firefox can\u2019t')) &&
+    (message.includes('wss://') || message.includes('ws://'))
+  ) {
+    return true
+  }
+  // Firefox DE + other locales often omit the word "WebSocket"
+  if (
+    message.includes('kann keine Verbindung') &&
+    (message.includes('wss://') || message.includes('ws://') || message.includes('Server unter'))
+  ) {
+    return true
+  }
+  // Gecko network codes for dead relays / TLS issues
+  if (
+    message.includes('NS_ERROR_CONNECTION_REFUSED') ||
+    message.includes('NS_ERROR_NET_RESET') ||
+    message.includes('NS_ERROR_NET_INTERRUPT') ||
+    message.includes('NS_ERROR_NET_TIMEOUT') ||
+    message.includes('NS_ERROR_UNKNOWN_HOST')
+  ) {
+    return true
+  }
+  return false
+}
+
 function suppressExpectedErrors() {
   // Override console.error to filter out expected errors
   const originalConsoleError = console.error
   
   console.error = (...args: any[]) => {
-    const message = args.join(' ')
-    
-    // Suppress favicon 404 errors
-    if (message.includes('favicon.ico') && message.includes('404')) {
+    const message = formatConsoleArgs(args)
+
+    if (isExpectedFaviconNetworkNoise(message)) {
       return
     }
-    
+
+    if (isExpectedRelayWebSocketNoise(message)) {
+      return
+    }
+
+    if (message.includes('NS_BINDING_ABORTED')) {
+      return
+    }
+
     // Suppress CORS errors for external websites (EN + DE Firefox strings)
     if (message.includes('CORS policy') ||
         message.includes('Access-Control-Allow-Origin') ||
@@ -106,11 +184,6 @@ function suppressExpectedErrors() {
       return
     }
     
-    // Suppress WebSocket connection errors
-    if (message.includes('WebSocket connection to') || message.includes('failed:') || message.includes('Close received after close')) {
-      return
-    }
-    
     // Suppress Ping timeout errors
     if (message.includes('Ping timeout')) {
       return
@@ -136,15 +209,8 @@ function suppressExpectedErrors() {
           (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://'))
-    ) {
+        message.includes('A resource is blocked by OpaqueResponseBlocking') ||
+        message.includes('NS_ERROR_CORRUPTED_CONTENT')) {
       return
     }
     
@@ -166,7 +232,15 @@ function suppressExpectedErrors() {
   const originalConsoleWarn = console.warn
   
   console.warn = (...args: any[]) => {
-    const message = args.join(' ')
+    const message = formatConsoleArgs(args)
+
+    if (isExpectedFaviconNetworkNoise(message)) {
+      return
+    }
+
+    if (isExpectedRelayWebSocketNoise(message)) {
+      return
+    }
     
     // Suppress invalid URI / failed media resource (e.g. empty img src)
     if (message.includes('Ungültige URI') ||
@@ -191,13 +265,6 @@ function suppressExpectedErrors() {
       return
     }
 
-    if (
-      message.includes('kann keine Verbindung') &&
-      (message.includes('WebSocket') || message.includes('ws://') || message.includes('wss://'))
-    ) {
-      return
-    }
-
     if (message.includes('NS_BINDING_ABORTED')) {
       return
     }
@@ -283,7 +350,11 @@ function suppressExpectedErrors() {
   const originalConsoleLog = console.log
   
   console.log = (...args: any[]) => {
-    const message = args.join(' ')
+    const message = formatConsoleArgs(args)
+
+    if (isExpectedFaviconNetworkNoise(message) || isExpectedRelayWebSocketNoise(message)) {
+      return
+    }
     
     // Firefox ORB: cross-origin favicon / relay icon requests often hit HTML or wrong MIME; not actionable in-app.
     if (
diff --git a/src/main.tsx b/src/main.tsx
index baf112e7..b7ee6b8b 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,7 +1,7 @@
 import './index.css'
 import './polyfill'
-import './services/lightning.service'
 import './lib/error-suppression'
+import './services/lightning.service'
 import './lib/debug-utils'
 import { fetchWithTimeout } from './lib/fetch-with-timeout'