Thunderbird is significant tool in my daily workflows. I created multiple profiles for RSS, email, calendar, contacts and usually have multiple instances opened at once. Everything operates smoothly. I would gladly setup monthly fee but also want to have the possiblity to cancel it at any time by the end of the month. This worries me:

> https://give.thunderbird.net/en-US/help/

How long it takes to process cancellation of recurring contribution?