Add Firefox cookie manager button or modify Tor Button
Tor Browser has no fast way to add or modify cookie exceptions. If users don't want to allow cookies on all sites by default, they must open Options >Privacy >Exceptions, to add each page as needed. Time involved adds up.
Since addons aren't recommended, could either modify Tor Button cookie manager to handle exceptions, or put a shortcut to Firefox's cookie exceptions on the tool bar. There are addons that add a Firefox native cookie manager button, but might hurt anonymity.
However it's done, it'd be nice if there was an option to allow the current page - essentially setting a Session Cookie exception, like most cookie managers do. Instead of C&P. Firefox native cookie manager leaves much to be desired.
Now, unless you leave Firefox Options tab permanently open, when Options GUI is closed, it reopens to the General section. Making repeatedly accessing the cookie manager a pain.