hello!In Thunderbird, the tabs are generally arranged in the order they were opened, with the oldest on the left and the most recently opened on the right. Unfortunately, there's no built-in setting to automatically reverse the tab order so that the most recently opened tab appears first.

However, here are a couple of potential solutions or workarounds that might help you: 1. Using Add-ons:

There may be an add-on that allows you to adjust the tab behavior. While there isn't a specific "reverse tab order" add-on currently widely known, Thunderbird's add-on ecosystem is quite active, and it’s possible there could be one that fits your need. You can check the Thunderbird Add-ons page for any updates or new tools that might provide more flexibility in how tabs are managed. 2. Manually Moving Tabs:

While Thunderbird doesn't offer automatic tab sorting, you can manually reorder the tabs by clicking and dragging them to the left or right. If you open new messages and prefer them to be closer to the left, you could drag the tabs after opening them to maintain that desired order. 3. Using the "Open Messages in a Tab" setting:

If you prefer to interact with your emails in a way that keeps things more organized, you might want to adjust how emails open. For example:

   Go to Tools > Options (or Preferences) > General.
   Under the Tabs section, you can set Thunderbird to open messages in new tabs or in the same tab, which could influence how the order of things appears. However, this still doesn't reverse the tab order itself.

Yep. These suggestions are valid but not solving the problem. One needs to be able to reverse the tab order. I guess I will just have to look in the source. This is open-source, after all.