The only thing this add-on needs is a feature like the one in Powerful Pixiv Downloader that adds a download button on the thumbnail of every picture for faster downloading.
I hope the addon's author reads this.

I like it, but two problems:
Even when downloading "Manga", I don't want a folder to be created, I don't see an option to disable that.
Also for the same, if I download a Manga that is identified as having 4 pages, it only downloads the front page.

If these things are fixed, this is perfect! Especially the ability to download animations, the extension I used on Chrome before migrating to Firefox didn't have that, nice!

It's great but you can't convert Ugoira to WebM anymore as they generate to 100% and then do nothing. It's been that way for a long time now, I'm talking 1 year or more.

Pretty good but creating webms never works for me, goes up to 100% but then doesn't saves it.

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.