Hi, my tabs didn't change order. The way I read the release notes at https://www.mozilla.org/firefox/124.0/releasenotes/ -- "In Firefox View, open tabs can now be sorted by either recent activity or tab order. Recent activity is the default setting." -- what is changing is that the open tabs ''list'' on the Firefox View page will have two different sorting options. Maybe it's because I have too many tabs open, but that list doesn't work for me -- it doesn't show any open tabs or sorting options even if I wait patiently for a while. If you want to save a list of your open tabs now or at any time, one method is to create a new bookmark folder with each of the titles and URLs. Luckily, you don't have to save them manually: Command+Shift+D (or Bookmarks menu > Bookmark All Tabs) can do it in one step.