You might have noticed that when you access the Options page of Firefox, there is a notice that shows Your browser is being managed by your organization. This happens ...

To use Tab Groups, make sure you are running Firefox version 137 or higher ... or Bing and different search areas such as your bookmarks or browser history. Modifying a search term in the browser ...

Firefox version 136.0 introduced vertical tabs natively to make tab management easier and ... stretching horizontally across the top of your browser, vertical tabs put them in a sidebar.