This is absolutely brilliant add-on and essential for Instagram grabs! Sure this kind of add-ons often go broken due to Firefox updates or Instagram site updates, but this developer is so quick with the fixes and soon we're back on track again :) And the features are the best: grabs pics, grabs story videos, grabs multi-pic posts. And the file naming is just right: somebody complained about "lot of numbers" in file name, but that's just the initial Instagram publication filename! This add-on is so very kind as to add the IG account name to the beginning of filename, which really helps in sorting out the files. Really, A BIG Thank You to the creator "mittya" for this!