docs/content/stable/yugabyte-cloud/cloud-clusters/add-extensions.md
YugabyteDB includes a number of pre-bundled PostgreSQL extensions, tested to work with YSQL, that you can use to extend the functionality of your database.
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YugabyteDB Aeon only supports extensions that are pre-bundled in YugabyteDB. You cannot install new extensions in YugabyteDB Aeon. Refer to PostgreSQL extensions for the list of pre-bundled extensions.
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Before using an extension, you must load it in the database using the CREATE EXTENSION command. For example:
CREATE EXTENSION fuzzystrmatch;
In YugabyteDB Aeon, extensions can only be loaded by users that are a member of the yb_extension role. All yb_superuser users, including the default database admin user, are members of yb_extension.
Use the GRANT statement to assign the role to users. For example, to grant the yb_extension role to user, use the following command:
yugabyte=# GRANT yb_extension TO user;
For more information on roles in YugabyteDB Aeon, refer to Database authorization in YugabyteDB Aeon clusters.