Yes, traditional Inuit loved certain animal livers, by most accounts. The Inuit didn't dislike liver or organs in general, as Stefansson sometimes claimed. The main reason they didn't eat polar bear at all or husky liver much was apparently because they contain very high levels of vitamin A. As I recall, even Stefansson admitted that polar bears are the only animal whose liver that the Inuit have a prohibition against eating entirely (or even feeding to their dogs). Scientists later discovered that polar bear livers contain levels of vitamin A that are toxic to both humans and dogs.
While Stefansson and others report that the Inuit tended to feed caribou liver and other organs to their dogs, Stefansson was apparently unaware that the Inuit prize seal liver. Also, Stefansson speaks more positively about organs elsewhere, such as in "Adventures in Diet," than he did in "Not by Bread Alone." I have found that the folks who avoid organs like liver tend to cherry pick the most anti-organ Stefansson quotes and ignore the pro-organ reports of Stefansson and many others. I have also noticed a correlation between belief that the Inuit didn't eat liver much and a dislike of the taste of liver. Coincidence?
Interestingly, Geraci and Smith found that ringed seal liver contains the third-highest level of vitamin C of the foods eaten by the Inuit population they studied, when eaten raw, after muktuk and mountain sorrell. (
http://pubs.aina.ucalgary.ca/arctic/Arctic32-2-135.pdf). Eating seal liver (and often the entire seal) raw (either fresh or aged) is apparently an Inuit tradition:
"The seal is cut in a specific way directly after a hunt. Borré explains the cutting of the seal is this way “one of the hunters slits the abdomen laterally, exposing the internal organs. Hunters first eat pieces of liver or they use a tea cup to gather some blood to drink.”[Borré, Kristen. “Seal Blood, Inuit Blood, and Diet: A Biocultural Model of Physiology and Cultural Identity.” Medical Anthropology Quarterly 5 (1991): 48–62. As quoted in "Inuit diet,"
http://en.wikipedia.org/wiki/Inuit_diet]
"Anthony Bourdain eats raw seal [including all the organs] with an Inuit family in Quebec." ["Anthony Bourdain in Quebec,"
http://www.youtube.com/watch?v=8d8EymQPiqk]
Among many hunter-gatherer peoples, the liver is one of the most prized parts of the animal, is often reserved for the hunters and is often seen as a source of strength. Such as among the !Kung:
"as we sit down on the kill site to cook and eat the liver
...
‘this one is not worth the effort; let’s just cook the liver for strength and leave the rest for the hyenas."
["Eating Christmas in the Kalahari," Richard Borshay Lee,
http://windward.hawaii.edu/facstaff/dagrossa-p/articles/EatingChristmas.pdf]
Inuit hunters reportedly eat the liver of a seal first as do !Kung hunters with kudu. Interestingly, the liver is also reportedly the first part of an animal that wolves eat.
"...the seal is then dismembered piece by piece, with nothing wasted. On a winter seal hunt men frequently take the liver from the seal (as it is rich in vitamin C) and eat it while it is still warm."
http://www.johntyman.com/arctic/inuit104.html