To use these add-ons, you'll need to download Firefox.

Qqen
Tignit n uzegrir

Iceggiren i Niconico Downloader

Niconico Downloader sɣur Nekoziroo

4,1 n yitran ɣef 5
5
24
4
14
3
5
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Icegger-it Aseqdac Firefox 13605919
sɣur Aseqdac Firefox 13605919, kahdeksan vuotta sitten
For those who can't read Japanese, use HTML5 viewer and click on the puzzle button at the url bar to download. It doesn't work with flash viewer though, so switch to HTML5 viewer