Iceggiren i Pixiv Toolkit
Pixiv Toolkit sɣur Leo Ding
Icegger-it Sienk
Incredibly easy to install and use with a simple and easy to use settings page. I'd love for a gif convert to webm feature, as many animated work on pixiv with this add-on can only be downloaded as gif or apng, so a gif > webm would be great. Otherwise, fantastic add-on.