Torbutton: Unexpected error during offline cache clearing: TypeError: Services.cache2.appCacheStorage is not a function

macOS 12.0 (21A5552a)

Tor Browser 11.0a9 (based on Mozilla Firefox 91.2.0esr) (64-bit)

Steps:

1. Click on button to reset identity.
2. Select Yes.

What happened:

Expected result: Ne error.