Hi Everyone, I used Thunderbird briefly a few years ago, then (for work reasons) switched to Outlook, and I uninstalled Thunderbird from my PC. Now I have retired and I want to try again with Thunderbird. So I downloaded the current version (115.6.1. 64-bit) and installed it. I find that it remembers my previous account settings, and over a thousand contact details, which I no longer need (or want) now that I have stopped working. It is also looking for work email accounts which no longer exist. I assume that Thunderbird archived all these data in a folder somewhere on my PC when I uninstalled it years ago. Now I would like to get rid of these settings, account details and contacts, and return Thunderbird to its out-of-the-box settings so that I can start again from scratch. Is there a quick and easy way to do this, without affecting any other systems on my PC? Thanks all.