diff --git a/src/agents/tools/web-fetch.ts b/src/agents/tools/web-fetch.ts
index b127cd49f..b53147a3e 100644
--- a/src/agents/tools/web-fetch.ts
+++ b/src/agents/tools/web-fetch.ts
@@ -282,17 +282,23 @@ export async function fetchFirecrawlContent(params: {
     storeInCache: params.storeInCache,
   };
 
-  const res = await fetch(endpoint, {
-    method: "POST",
-    headers: {
-      Authorization: `Bearer ${params.apiKey}`,
-      "Content-Type": "application/json",
-    },
-    body: JSON.stringify(body),
-    signal: withTimeout(undefined, params.timeoutSeconds * 1000),
-  });
+  let res: Response;
+  try {
+    res = await fetch(endpoint, {
+      method: "POST",
+      headers: {
+        Authorization: `Bearer ${params.apiKey}`,
+        "Content-Type": "application/json",
+      },
+      body: JSON.stringify(body),
+      signal: withTimeout(undefined, params.timeoutSeconds * 1000),
+    });
+  } catch (err) {
+    const message = err instanceof Error ? err.message : String(err);
+    throw new Error(`Firecrawl fetch failed (network error): ${message}`);
+  }
 
-  const payload = (await res.json()) as {
+  let payload: {
     success?: boolean;
     data?: {
       markdown?: string;
@@ -306,6 +312,12 @@ export async function fetchFirecrawlContent(params: {
     warning?: string;
     error?: string;
   };
+  try {
+    payload = (await res.json()) as typeof payload;
+  } catch (err) {
+    const message = err instanceof Error ? err.message : String(err);
+    throw new Error(`Firecrawl fetch failed (invalid response): ${message}`);
+  }
 
   if (!res.ok || payload?.success === false) {
     const detail = payload?.error || res.statusText;
diff --git a/src/agents/tools/web-tools.fetch.test.ts b/src/agents/tools/web-tools.fetch.test.ts
index 86bdeb7a2..7bd19aec8 100644
--- a/src/agents/tools/web-tools.fetch.test.ts
+++ b/src/agents/tools/web-tools.fetch.test.ts
@@ -269,4 +269,75 @@ describe("web_fetch extraction fallbacks", () => {
       /Web fetch failed \(500\):.*Oops/,
     );
   });
+
+  it("handles network-level fetch failure in firecrawl fallback", async () => {
+    const mockFetch = vi.fn((input: RequestInfo) => {
+      const url = requestUrl(input);
+      if (url.includes("api.firecrawl.dev")) {
+        return Promise.reject(new TypeError("fetch failed"));
+      }
+      // Direct fetch fails with 403
+      return Promise.resolve({
+        ok: false,
+        status: 403,
+        headers: makeHeaders({ "content-type": "text/html" }),
+        text: async () => "blocked",
+      } as Response);
+    });
+    // @ts-expect-error mock fetch
+    global.fetch = mockFetch;
+
+    const tool = createWebFetchTool({
+      config: {
+        tools: {
+          web: {
+            fetch: { cacheTtlMinutes: 0, firecrawl: { apiKey: "firecrawl-test" } },
+          },
+        },
+      },
+      sandboxed: false,
+    });
+
+    await expect(
+      tool?.execute?.("call", { url: "https://example.com/network-error" }),
+    ).rejects.toThrow(/Firecrawl fetch failed \(network error\)/);
+  });
+
+  it("handles invalid JSON response from firecrawl", async () => {
+    const mockFetch = vi.fn((input: RequestInfo) => {
+      const url = requestUrl(input);
+      if (url.includes("api.firecrawl.dev")) {
+        return Promise.resolve({
+          ok: true,
+          status: 200,
+          json: async () => {
+            throw new SyntaxError("Unexpected token");
+          },
+        } as Response);
+      }
+      return Promise.resolve({
+        ok: false,
+        status: 403,
+        headers: makeHeaders({ "content-type": "text/html" }),
+        text: async () => "blocked",
+      } as Response);
+    });
+    // @ts-expect-error mock fetch
+    global.fetch = mockFetch;
+
+    const tool = createWebFetchTool({
+      config: {
+        tools: {
+          web: {
+            fetch: { cacheTtlMinutes: 0, firecrawl: { apiKey: "firecrawl-test" } },
+          },
+        },
+      },
+      sandboxed: false,
+    });
+
+    await expect(
+      tool?.execute?.("call", { url: "https://example.com/invalid-json" }),
+    ).rejects.toThrow(/Firecrawl fetch failed \(invalid response\)/);
+  });
 });