diff --git a/browser/components/enterprisepolicies/Policies.jsm b/browser/components/enterprisepolicies/Policies.jsm
index 95e53457e594..1093eadd864b 100644
--- a/browser/components/enterprisepolicies/Policies.jsm
+++ b/browser/components/enterprisepolicies/Policies.jsm
@@ -107,15 +107,6 @@ var Policies = {
   "Cookies": {
     onBeforeUIStartup(manager, param) {
       addAllowDenyPermissions("cookie", param.Allow, param.Block);
-
-      if (param.Block) {
-        const hosts = param.Block.map(uri => uri.host).sort().join('\n');
-        runOncePerModification("clearCookiesForBlockedHosts", hosts, () => {
-          for (let blocked of param.Block) {
-            Services.cookies.removeCookiesWithOriginAttributes("{}", blocked.host);
-          }
-        });
-      }
     }
   },
 
diff --git a/browser/components/enterprisepolicies/tests/browser/browser.ini b/browser/components/enterprisepolicies/tests/browser/browser.ini
index 5ab1effcd42d..d0a73e1c9813 100644
--- a/browser/components/enterprisepolicies/tests/browser/browser.ini
+++ b/browser/components/enterprisepolicies/tests/browser/browser.ini
@@ -21,7 +21,6 @@ support-files =
 [browser_policy_block_about_profiles.js]
 [browser_policy_block_about_support.js]
 [browser_policy_block_set_desktop_background.js]
-[browser_policy_blocked_cookies.js]
 [browser_policy_bookmarks.js]
 [browser_policy_default_browser_check.js]
 [browser_policy_disable_formhistory.js]
diff --git a/browser/components/enterprisepolicies/tests/browser/browser_policy_blocked_cookies.js b/browser/components/enterprisepolicies/tests/browser/browser_policy_blocked_cookies.js
deleted file mode 100644
index 663d352a35fc..000000000000
--- a/browser/components/enterprisepolicies/tests/browser/browser_policy_blocked_cookies.js
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/ */
-"use strict";
-
-
-add_task(async function setup() {
-  const expiry = Date.now() + 24 * 60 * 60;
-  Services.cookies.add("example.com", "/", "secure", "true", true, false, false, expiry, {});
-  Services.cookies.add("example.com", "/", "insecure", "true", false, false, false, expiry, {});
-  Services.cookies.add("example.org", "/", "secure", "true", true, false, false, expiry, {});
-  Services.cookies.add("example.org", "/", "insecure", "true", false, false, false, expiry, {});
-  Services.cookies.add("example.net", "/", "secure", "true", true, false, false, expiry, {});
-  await setupPolicyEngineWithJson({
-    "policies": {
-      "Cookies": {
-        "Block": [
-          "http://example.com",
-          "https://example.org:8080"
-        ]
-      }
-    }
-  });
-});
-
-function retrieve_all_cookies(host) {
-  const values = [];
-  const cookies = Services.cookies.getCookiesFromHost(host, {});
-  while (cookies.hasMoreElements()) {
-    const cookie = cookies.getNext().QueryInterface(Ci.nsICookie);
-    values.push({
-      host: cookie.host,
-      name: cookie.name,
-      path: cookie.path
-    });
-  }
-  return values;
-}
-
-add_task(async function test_cookies_for_blocked_sites_cleared() {
-  const cookies = {
-    hostname: retrieve_all_cookies("example.com"),
-    origin: retrieve_all_cookies("example.org"),
-    keep: retrieve_all_cookies("example.net")
-  };
-  const expected = {
-    hostname: [],
-    origin: [],
-    keep: [
-      {host: "example.net",
-       name: "secure",
-       path: "/"}
-    ]
-  };
-  is(JSON.stringify(cookies), JSON.stringify(expected),
-     "All stored cookies for blocked hosts should be cleared");
-});
-
-add_task(function teardown() {
-  for (let host of ["example.com", "example.org", "example.net"]) {
-    Services.cookies.removeCookiesWithOriginAttributes("{}", host);
-  }
-});
\ No newline at end of file