The free version of Filezilla does not support Wasabi (unless you use the FTP capability).
For FileZilla FTP Pro:
The "Pro" (paid) version of FileZilla supports a S3 interface which can be used to connect to Wasabi. As of FileZilla Pro version 3.30.0, you have the ability to use S3-compatible storage like Wasabi. To configure this option in FileZilla Pro, please follow the steps below:
1. In Settings -> Transfers -> S3: Providers, configure a provider for Wasabi as shown in the example below.
2. In Site Manager, configure your Wasabi connection. Enter your Access Key and Secret Key.
For FileZilla FTP:
FTP feature can be used only by the root user, hence make sure you enter your Wasabi Root Account email and password for the root user when you use FTP instead of the S3 protocol to make a connection. The host here is still s3.wasabisys.com:
Note that this example discusses the use of Wasabi's us-east-1 storage region. To use other Wasabi storage regions, please use the appropriate Wasabi service URL as described in this article.