TBB "Cookie Protections" dialog is always empty
TorButton's "Cookie Protections" dialog is supposed to display all cookies set in the browser by sites, and allow deletion and protection of specific ones. On all of my machines, the dialog never displays any cookies, though "Delete all unprotected" seems to work. This has been broken for quite some time. If this feature is no longer supported, it should probably be removed from the UI. Tested on Arch and Mint.