diff --git a/src/extension-provider/createExternalExtensionProvider.test.ts b/src/extension-provider/createExternalExtensionProvider.test.ts
index 87ce1489..32d2e4f8 100644
--- a/src/extension-provider/createExternalExtensionProvider.test.ts
+++ b/src/extension-provider/createExternalExtensionProvider.test.ts
@@ -1,7 +1,7 @@
 import type { JsonRpcRequest } from '@metamask/utils';
 
 import { createExternalExtensionProvider } from './createExternalExtensionProvider';
-import config from './external-extension-config.json';
+import config from './external-extension-config';
 import { MockPort } from '../../test/mocks/MockPort';
 import type { BaseProvider } from '../BaseProvider';
 import messages from '../messages';
diff --git a/src/extension-provider/createExternalExtensionProvider.ts b/src/extension-provider/createExternalExtensionProvider.ts
index cf026331..d516d906 100644
--- a/src/extension-provider/createExternalExtensionProvider.ts
+++ b/src/extension-provider/createExternalExtensionProvider.ts
@@ -3,7 +3,7 @@ import { PortDuplexStream as PortStream } from 'extension-port-stream';
 import type { Duplex } from 'readable-stream';
 import type { Runtime } from 'webextension-polyfill';
 
-import config from './external-extension-config.json';
+import config from './external-extension-config';
 import { MetaMaskInpageProviderStreamName } from '../MetaMaskInpageProvider';
 import { StreamProvider } from '../StreamProvider';
 import { getDefaultExternalMiddleware } from '../utils';
diff --git a/src/extension-provider/external-extension-config.json b/src/extension-provider/external-extension-config.json
deleted file mode 100644
index c780400b..00000000
--- a/src/extension-provider/external-extension-config.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "chromeIds": {
-    "stable": "nkbihfbeogaeaoehlefnkodbefgpgknn",
-    "beta": "pbbkamfgmaedccnfkmjcofcecjhfgldn",
-    "flask": "ljfoeinjpaedjfecbmggjgodbgkmjkjk"
-  },
-  "firefoxIds": {
-    "stable": "webextension@metamask.io",
-    "beta": "webextension-beta@metamask.io",
-    "flask": "webextension-flask@metamask.io"
-  }
-}
diff --git a/src/extension-provider/external-extension-config.ts b/src/extension-provider/external-extension-config.ts
new file mode 100644
index 00000000..6311863c
--- /dev/null
+++ b/src/extension-provider/external-extension-config.ts
@@ -0,0 +1,13 @@
+/* eslint-disable import/no-anonymous-default-export */
+export default {
+  chromeIds: {
+    stable: 'nkbihfbeogaeaoehlefnkodbefgpgknn',
+    beta: 'pbbkamfgmaedccnfkmjcofcecjhfgldn',
+    flask: 'ljfoeinjpaedjfecbmggjgodbgkmjkjk',
+  },
+  firefoxIds: {
+    stable: 'webextension@metamask.io',
+    beta: 'webextension-beta@metamask.io',
+    flask: 'webextension-flask@metamask.io',
+  },
+};