Hi, I use Thunderbird since years and I really appriciate all the hard work you guys invest into that great project! Thanks for that, and keep going! I have the following issue, and I think every Thunderbird user has it as well: after a update of Thunderbird to a higher version, a bunch of plugins and addons won't work anymore, either for month, or worst case never ever at all. For instance: after updating to version 103.3.0 Thunderbird has a irritating new look and user Interface and a fresh look for items and buttons, but the addons "TbSync" and "CardDAV provider" dosn't work anymore, so it is not possible to sync calendars and contacts anymore. (Just great! Thanks! ) I am not even sure if there is a possibility at the internet or any website, to somewhere check ''first'' which add ons won't work after the a update (!?). Could you please, incorporate a "plugin and addon check" into the Thunderbird update routine that WARNS BEFORE the update is run, that the plugins won't work anymore afterwards. I don't mean a non-discript warnung: "Hey, 'some' plugins might not work afterwards, but we won't tell you ''which'' of your installed plugins will be crippled!" I would like a dedicated warning which of the installed plugins won't work anymore: "After update to version yxxc the following installed plugins and addons won't work anymore: Call DAVProvider, TbSync, Quicktext... Category Manager, etc. Do you want to proceed with the update?" Or at least provide a pop up with a link to any site that might list the plugins/ addons that won't work afterwards, so that the users can check and decide obout the risk of running the upgrade and decide to stop it. Thanks a lot Michael