diff --git a/tests/nostr-login-permissions.test.mjs b/tests/nostr-login-permissions.test.mjs
index 13516f4a..576facb2 100644
--- a/tests/nostr-login-permissions.test.mjs
+++ b/tests/nostr-login-permissions.test.mjs
@@ -84,7 +84,11 @@ function setupLoginEnvironment({ enableImpl, getPublicKey = HEX_PUBKEY } = {}) {
       configurable: true,
     });
   } catch (e) {
-    global.__BITVID_CANONICAL_NOSTR_TOOLS__ = toolkitStub;
+    try {
+      global.__BITVID_CANONICAL_NOSTR_TOOLS__ = toolkitStub;
+    } catch (ignore) {
+      // Ignore assignment errors if property is read-only
+    }
   }
   global.nostrToolsReady = Promise.resolve({ ok: true, value: toolkitStub });
 
diff --git a/tests/nostr/adapters.test.mjs b/tests/nostr/adapters.test.mjs
index e111ee77..e101ff72 100644
--- a/tests/nostr/adapters.test.mjs
+++ b/tests/nostr/adapters.test.mjs
@@ -32,7 +32,9 @@ test("createNsecAdapter wires signing and cipher capabilities", async () => {
         configurable: true,
       });
     } catch (e) {
-      globalThis.__BITVID_CANONICAL_NOSTR_TOOLS__ = canonicalTools;
+      try {
+        globalThis.__BITVID_CANONICAL_NOSTR_TOOLS__ = canonicalTools;
+      } catch (ignore) {}
     }
     globalThis.NostrTools = canonicalTools;
     globalThis.nostrToolsReady = Promise.resolve({
@@ -70,7 +72,9 @@ test("createNsecAdapter wires signing and cipher capabilities", async () => {
           configurable: true,
         });
       } catch (e) {
-        globalThis.__BITVID_CANONICAL_NOSTR_TOOLS__ = previousCanonical;
+        try {
+          globalThis.__BITVID_CANONICAL_NOSTR_TOOLS__ = previousCanonical;
+        } catch (ignore) {}
       }
     }
 
diff --git a/tests/nostr/nip07Adapter-race-condition.test.mjs b/tests/nostr/nip07Adapter-race-condition.test.mjs
index a7e076cd..8534d6e5 100644
--- a/tests/nostr/nip07Adapter-race-condition.test.mjs
+++ b/tests/nostr/nip07Adapter-race-condition.test.mjs
@@ -1,3 +1,4 @@
+import '../test-helpers/setup-localstorage.mjs';
 import assert from 'node:assert';
 import { test, describe, beforeEach, afterEach } from 'node:test';
 import { createNip07Adapter } from '../../js/nostr/adapters/nip07Adapter.js';