diff --git a/.circleci/scripts/yarn-audit.sh b/.circleci/scripts/yarn-audit.sh
index 30efcf2d7..f9e83e654 100755
--- a/.circleci/scripts/yarn-audit.sh
+++ b/.circleci/scripts/yarn-audit.sh
@@ -7,7 +7,7 @@ set -o pipefail
 
 # use `improved-yarn-audit` since that allows for exclude
 # exclude 1002401 until we remove use of 3Box, 1002581 until we can find a better solution
-yarn run improved-yarn-audit --ignore-dev-deps --min-severity moderate --exclude 1002401,1002581,GHSA-93q8-gq69-wqmw,GHSA-257v-vj4p-3w2h,GHSA-qrpm-p2h7-hrv2
+yarn run improved-yarn-audit --ignore-dev-deps --min-severity moderate --exclude GHSA-93q8-gq69-wqmw,GHSA-257v-vj4p-3w2h,GHSA-fwr7-v2mv-hh25
 audit_status="$?"
 
 # Use a bitmask to ignore INFO and LOW severity audit results
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index f4f482891..e5e8493fd 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -77,7 +77,6 @@ import { MILLISECOND } from '../../shared/constants/time';
 import {
   ///: BEGIN:ONLY_INCLUDE_IN(flask)
   MESSAGE_TYPE,
-  PLATFORM_FIREFOX,
   ///: END:ONLY_INCLUDE_IN
   POLLING_TOKEN_ENVIRONMENT_TYPES,
   SUBJECT_TYPES,
@@ -138,10 +137,6 @@ import {
   ///: END:ONLY_INCLUDE_IN
 } from './controllers/permissions';
 
-///: BEGIN:ONLY_INCLUDE_IN(flask)
-import { getPlatform } from './lib/util';
-///: END:ONLY_INCLUDE_IN
-
 export const METAMASK_CONTROLLER_EVENTS = {
   // Fired after state changes that impact the extension badge (unapproved msg count)
   // The process of updating the badge happens in app/scripts/background.js.
@@ -620,10 +615,7 @@ export default class MetamaskController extends EventEmitter {
       ],
     });
 
-    const usingFirefox = getPlatform() === PLATFORM_FIREFOX;
-
     this.snapController = new SnapController({
-      npmRegistryUrl: usingFirefox ? 'https://registry.npmjs.cf/' : undefined,
       endowmentPermissionNames: Object.values(EndowmentPermissions),
       terminateAllSnaps: this.workerController.terminateAllSnaps.bind(
         this.workerController,
diff --git a/yarn.lock b/yarn.lock
index a306d2491..f3fcb1459 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6200,9 +6200,9 @@ async@^1.4.2:
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
 async@^2.0.1, async@^2.1.2, async@^2.1.4, async@^2.4.0, async@^2.5.0, async@^2.6.0, async@^2.6.1, async@^2.6.2, async@^2.6.3:
-  version "2.6.3"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
-  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
+  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
   dependencies:
     lodash "^4.17.14"