As I am downloading all my old #Glitch projects (RIP, fair prince), I want to shout out DownThemAll: https://www.downthemall.org/
This extension (and its website) have remained essentially unchanged but maintained since I first used it going on twenty years ago, and is very good at its singular job: downloading a bunch of things without having to click a bunch of things.
I clicked several individual buttons before remembering this humble extension, pulled it up, typed "Download" into the filter box to find all the Download buttons, and hit Download. All my projects were tossed into a queue and courteously downloaded without any fuss, and a nice progress monitor when it was done.
Thanks, Nils Maier, for your steady and consistent hand keeping this extension running. I didn't find any Mastodon presence, so I also tossed him a long-overdue donation with a nice note instead, in the spirit of @GeePawHill's exhortations to let someone know when you appreciate the things they do.