Pinned Tabs (or App Tabs) allow you to keep your favorite web apps, like Facebook and Gmail, open and just a click away. This article explains how to use them.
However, they disappear and are not loaded anymore if you have multiple Firefox windows open and the window with the pinned tabs is not the last Firefox window one you close…
However, they disappear and are not loaded anymore if you have multiple Firefox windows open and the window with the pinned tabs is not the last Firefox window one you close…