diff --git a/src/components/CopyText.tsx b/src/components/CopyText.tsx
index a190e22bd7e..457ad816798 100644
--- a/src/components/CopyText.tsx
+++ b/src/components/CopyText.tsx
@@ -41,7 +41,7 @@ const CopyContainer = ({ text, code, format, formatType, eventName, additionalIn
 
   return (
     <span className="copyContainer">
-      {code ? <code>{displayText}</code> : displayText}
+      {code ? <code data-1p-ignore>{displayText}</code> : displayText}
       <button
         className={clsx("copyBtn", "copy-iconbutton")}
         style={{ height: "16px", width: "16px", minWidth: "12px" }}
diff --git a/src/components/HeadCommon.astro b/src/components/HeadCommon.astro
index f2199bba192..b45d14fabf0 100644
--- a/src/components/HeadCommon.astro
+++ b/src/components/HeadCommon.astro
@@ -58,6 +58,31 @@ const { title } = Astro.props
 <!-- Scrollable a11y code helper - defer to not block render -->
 <script src="/make-scrollable-code-focusable.js" defer></script>
 
+<!-- Prism.js for client-side syntax highlighting (to fix browser extension conflicts) -->
+<script is:inline>
+  window.Prism = window.Prism || {}
+  window.Prism.manual = true // Prevent auto-highlighting on load, we'll control it via our script
+</script>
+<script
+  src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-core.min.js"
+  integrity="sha512-9khQRAUBYEJDCDVP2yw3LRUQvjJ0Pjx0EShmaQjcHa6AXiOv6qHQu9lCAIR8O+/D8FtaCoJ2c0Tf9Xo7hYH01Q=="
+  crossorigin="anonymous"
+  referrerpolicy="no-referrer"
+  defer></script>
+<script
+  src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/plugins/autoloader/prism-autoloader.min.js"
+  integrity="sha512-SkmBfuA2hqjzEVpmnMt/LINrjop3GKWqsuLSSB3e7iBmYK7JuWw4ldmmxwD9mdm2IRTTi0OxSAfEGvgEi0i2Kw=="
+  crossorigin="anonymous"
+  referrerpolicy="no-referrer"
+  defer></script>
+<script is:inline>
+  // Configure Prism autoloader to use CDN
+  window.Prism = window.Prism || {}
+  window.Prism.plugins = window.Prism.plugins || {}
+  window.Prism.plugins.autoloader = window.Prism.plugins.autoloader || {}
+  window.Prism.plugins.autoloader.languages_path = "https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/"
+</script>
+
 <!-- Preconnects to speed GTM/GA when they load -->
 <link rel="preconnect" href="https://www.googletagmanager.com" crossorigin />
 <link rel="preconnect" href="https://www.google-analytics.com" crossorigin />
diff --git a/src/scripts/fix-prism-extension-conflict.ts b/src/scripts/fix-prism-extension-conflict.ts
new file mode 100644
index 00000000000..b53582dbaf6
--- /dev/null
+++ b/src/scripts/fix-prism-extension-conflict.ts
@@ -0,0 +1,157 @@
+/**
+ * Fix for 1Password and other browser extensions that bundle Prism.js
+ *
+ * Problem: Extensions with bundled Prism.js (especially 1Password beta/nightly)
+ * run Prism.highlightAll() on page load, which strips our syntax highlighting
+ * by removing .token spans and even <pre> wrappers.
+ *
+ * Solution: Detect when highlighting is stripped and re-apply it.
+ * Only targets code BLOCKS (pre>code), not inline code elements.
+ */
+
+// Extend Window interface to include Prism
+declare global {
+  interface Window {
+    Prism?: {
+      highlightAll: () => void
+    }
+  }
+}
+
+let isFixing = false
+let retryCount = 0
+const MAX_RETRIES = 3
+
+/**
+ * Check if Prism highlighting has been compromised
+ * Returns true if we find code blocks that should be highlighted but aren't
+ */
+function isPrismCompromised(): boolean {
+  // Look for code elements with language-* class but no token spans inside
+  const codeBlocks = document.querySelectorAll('pre code[class*="language-"]')
+
+  console.log("[Prism Fix] Checking", codeBlocks.length, "code blocks")
+
+  for (const block of Array.from(codeBlocks)) {
+    const hasTokens = block.querySelector('[class*="token"]')
+    const textContent = block.textContent || ""
+    const hasContent = textContent.trim().length > 0
+
+    console.log("[Prism Fix] Block check:", {
+      hasTokens: !!hasTokens,
+      hasContent,
+      language: block.className,
+    })
+
+    if (!hasTokens && hasContent) {
+      // Found a code block that should be highlighted but isn't
+      console.log("[Prism Fix] Found compromised block - will attempt to fix:", block)
+      return true
+    }
+  }
+
+  console.log("[Prism Fix] All code blocks appear to be properly highlighted")
+  return false
+}
+
+/**
+ * Re-highlight all code blocks using Prism
+ */
+function reHighlightCode() {
+  if (isFixing) return
+
+  isFixing = true
+  retryCount++
+
+  try {
+    // Check if Prism is available
+    if (typeof window.Prism !== "undefined") {
+      // Re-run Prism highlighting on all code blocks
+      window.Prism.highlightAll()
+      console.log("[Prism Fix] Re-applied syntax highlighting (retry", retryCount, ")")
+    }
+  } catch (error) {
+    console.error("[Prism Fix] Error re-highlighting:", error)
+  } finally {
+    isFixing = false
+  }
+}
+
+/**
+ * Check and fix Prism highlighting after a delay
+ */
+function checkAndFix(delay = 100) {
+  setTimeout(() => {
+    console.log("[Prism Fix] Running check (retry count:", retryCount, "/", MAX_RETRIES, ")")
+    if (isPrismCompromised() && retryCount < MAX_RETRIES) {
+      console.log("[Prism Fix] Attempting to fix...")
+      reHighlightCode()
+    } else if (retryCount >= MAX_RETRIES) {
+      console.log("[Prism Fix] Max retries reached, stopping checks")
+    }
+  }, delay)
+}
+
+/**
+ * Initialize the fix
+ */
+function init() {
+  console.log("[Prism Fix] Initializing browser extension fix")
+  console.log("[Prism Fix] Prism available?", typeof window.Prism !== "undefined")
+
+  // Wait for Prism to load before attempting fixes
+  function waitForPrism() {
+    if (typeof window.Prism !== "undefined") {
+      console.log("[Prism Fix] Prism loaded successfully")
+      startChecking()
+    } else {
+      console.log("[Prism Fix] Waiting for Prism to load...")
+      setTimeout(waitForPrism, 100)
+    }
+  }
+
+  function startChecking() {
+    // Check immediately after DOM is ready
+    if (document.readyState === "loading") {
+      document.addEventListener("DOMContentLoaded", () => checkAndFix(50))
+    } else {
+      checkAndFix(50)
+    }
+
+    // Check again after a short delay (in case extension runs after us)
+    checkAndFix(200)
+    checkAndFix(500)
+    checkAndFix(1000)
+  }
+
+  waitForPrism()
+
+  // Set up a MutationObserver to detect if extension modifies code blocks
+  const observer = new MutationObserver((mutations) => {
+    // Check if any mutation affected code blocks
+    for (const mutation of mutations) {
+      if (mutation.type === "childList" || mutation.type === "characterData") {
+        const target = mutation.target as HTMLElement
+
+        // Check if the mutation is inside a code block
+        const codeBlock = target.closest('pre code[class*="language-"]')
+        if (codeBlock) {
+          checkAndFix(100)
+          break
+        }
+      }
+    }
+  })
+
+  // Start observing
+  observer.observe(document.body, {
+    childList: true,
+    subtree: true,
+    characterData: true,
+  })
+}
+
+// Only run in browser
+if (typeof window !== "undefined") {
+  init()
+}
diff --git a/src/scripts/index.ts b/src/scripts/index.ts
index 2b912568f04..259fe04dfe4 100644
--- a/src/scripts/index.ts
+++ b/src/scripts/index.ts
@@ -2,3 +2,4 @@ import "./fix-remix-urls"
 import "./fix-external-links"
 import "./copyToClipboard/copyToClipboard"
 import "./scroll-to-search"
+import "./fix-prism-extension-conflict"
diff --git a/src/styles/index.css b/src/styles/index.css
index 8593eab6ab5..9fd8130cafb 100644
--- a/src/styles/index.css
+++ b/src/styles/index.css
@@ -89,6 +89,59 @@ strong {
   word-break: break-word;
 }
 
+/* Override browser extensions (1Password, etc.) that inject dark themes into INLINE code elements ONLY */
+/* Specifically target ONLY inline code, never code inside pre tags or with token classes */
+/* Target: inline code in paragraphs, tables, and CopyText components */
+/* Use descendant selector (space) to catch nested code (e.g., inside <strong>) */
+body p code:not([class*="token"]),
+body li code:not([class*="token"]),
+body td code:not([class*="token"]),
+body th code:not([class*="token"]),
+body .copyContainer code:not([class*="token"]),
+body h1 code:not([class*="token"]),
+body h2 code:not([class*="token"]),
+body h3 code:not([class*="token"]),
+body h4 code:not([class*="token"]),
+body h5 code:not([class*="token"]),
+body h6 code:not([class*="token"]),
+body blockquote code:not([class*="token"]),
+body a code:not([class*="token"]),
+body strong code:not([class*="token"]),
+body em code:not([class*="token"]),
+body b code:not([class*="token"]),
+body i code:not([class*="token"]),
+body span code:not([class*="token"]) {
+  background: var(--theme-code-inline-bg) !important;
+  background-color: var(--theme-code-inline-bg) !important;
+  color: var(--theme-code-inline-text) !important;
+  font-family: var(--font-mono) !important;
+  padding: var(--padding-block) var(--padding-inline) !important;
+  border-radius: var(--border-radius) !important;
+  white-space: normal !important;
+  word-break: break-word !important;
+  line-height: inherit !important;
+  font-size: 0.85em !important;
+  font-weight: bold !important;
+}
+
+/* Make absolutely sure we NEVER style code blocks */
+pre code,
+pre > code,
+.code-block-container code,
+[class*="code-block"] code {
+  background: none !important;
+  background-color: transparent !important;
+  color: inherit !important;
+  font-family: inherit !important;
+  padding: 0 !important;
+  border-radius: 0 !important;
+  white-space: pre !important;
+  word-break: normal !important;
+  line-height: inherit !important;
+  font-size: inherit !important;
+  font-weight: inherit !important;
+}
+
 /* Inline code in headings should inherit heading font size and weight */
 :is(h1, h2, h3, h4, h5, h6) :not(pre) > code,
 :is(h1, h2, h3, h4, h5, h6) code {