diff --git a/docs/USER_GUIDE.md b/docs/USER_GUIDE.md
index 012727d1f..0933a7aec 100644
--- a/docs/USER_GUIDE.md
+++ b/docs/USER_GUIDE.md
@@ -999,7 +999,7 @@ button to point the app at a different server.
 
 | Shortcut | Action |
 |---|---|
-| `Ctrl/Cmd+K` | Command palette |
+| `Ctrl/Cmd+Shift+K` | Command palette (bare Ctrl+K is the browser's own search shortcut and never reaches the page) |
 | `Ctrl/Cmd+B` | Show or hide the Places rail (desktop) |
 | `Ctrl/Cmd+Shift+T` | New terminal session |
 | `Ctrl/Cmd+Shift+W` | Close active tab |
diff --git a/web/src/App.tsx b/web/src/App.tsx
index 0ecbe86f3..f38bf93df 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -1632,7 +1632,7 @@ const App: Component = () => {
               «
             </button>
           </div>
-          <button type="button" class="rail-go-to" title="Go to… (Ctrl/Cmd+K)" onClick={() => setCommandPaletteOpen(true)}>Go to…</button>
+          <button type="button" class="rail-go-to" title="Go to… (Ctrl/Cmd+Shift+K)" onClick={() => setCommandPaletteOpen(true)}>Go to…</button>
           {/* B1: a pointer, not a second WaitingSession. Outage wins ties over
               a waiting session; "running" never earns a card. Click routes to
               the one waiting session's own terminal, or to Sessions when
@@ -2071,7 +2071,7 @@ const App: Component = () => {
               with no header of its own: a route outcome (loading, not found,
               unavailable). */}
           <Show when={routeProblem()}>
-            <button type="button" class="mobile-go-to" title="Go to… (Ctrl/Cmd+K)" onClick={() => setCommandPaletteOpen(true)}>
+            <button type="button" class="mobile-go-to" title="Go to… (Ctrl/Cmd+Shift+K)" onClick={() => setCommandPaletteOpen(true)}>
               Go to…
             </button>
           </Show>
diff --git a/web/src/GoToButton.tsx b/web/src/GoToButton.tsx
index 02327eace..66def4c2a 100644
--- a/web/src/GoToButton.tsx
+++ b/web/src/GoToButton.tsx
@@ -21,7 +21,7 @@ export const GoToButton: Component<{ class?: string }> = (props) => {
           type="button"
           class={`go-to-inline${props.class ? ` ${props.class}` : ""}`}
           aria-label="Go to… (command palette)"
-          title="Go to… (Ctrl/Cmd+K)"
+          title="Go to… (Ctrl/Cmd+Shift+K)"
           onClick={() => actions().openCommandPalette()}
         >
           <svg viewBox="0 0 24 24" aria-hidden="true">
diff --git a/web/src/__tests__/keyboardShortcuts.test.tsx b/web/src/__tests__/keyboardShortcuts.test.tsx
index 8394bbf2d..40f776d3c 100644
--- a/web/src/__tests__/keyboardShortcuts.test.tsx
+++ b/web/src/__tests__/keyboardShortcuts.test.tsx
@@ -56,9 +56,12 @@ describe("the declared shortcut registry", () => {
   it("still matches the declared global palette binding from an input", () => {
     const input = document.createElement("input");
     document.body.append(input);
-    expect(matchedFrom(input, { key: "k", ctrlKey: true })?.id).toBe(
+    expect(matchedFrom(input, { key: "k", ctrlKey: true, shiftKey: true })?.id).toBe(
       "open-command-palette",
     );
+    // Bare Ctrl+K is Firefox's "Search the web" and is never delivered to the
+    // page, so it must not be the binding.
+    expect(matchedFrom(input, { key: "k", ctrlKey: true })).toBeUndefined();
     input.remove();
   });
 });
diff --git a/web/src/keyboardShortcuts.ts b/web/src/keyboardShortcuts.ts
index a70ab64a1..344a28d8a 100644
--- a/web/src/keyboardShortcuts.ts
+++ b/web/src/keyboardShortcuts.ts
@@ -33,12 +33,17 @@ export interface KeyboardShortcut {
 export const KEYBOARD_SHORTCUTS: readonly KeyboardShortcut[] = [
   {
     id: "open-command-palette",
-    keys: ["Ctrl/Cmd", "K"],
+    // Shift is load-bearing. Firefox claims bare Ctrl+K ("Search the web") in
+    // its own shortcut layer and never delivers the keydown to the page, so
+    // preventDefault on the bubble listener cannot win it. Ctrl/Cmd+Shift+K is
+    // not reserved there (or by Chrome's omnibox Ctrl+K) and still reaches a
+    // focused terminal, because xterm only claims unmodified Ctrl+letter.
+    keys: ["Ctrl/Cmd", "Shift", "K"],
     description: "Open command palette",
     category: "Navigation",
     context: "global",
     contextLabel: "Anywhere",
-    binding: { key: "k", ctrlOrMeta: true, alt: false, shift: false },
+    binding: { key: "k", ctrlOrMeta: true, alt: false, shift: true },
   },
   {
     id: "new-terminal-session",