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.
The pins are part of the window, so… You can access old closed windows through the history menu, which I believe works after starting a new session after quitting it.
The pins are part of the window, so… You can access old closed windows through the history menu, which I believe works after starting a new session after quitting it.