Rated 3 out of 5 stars

The alternative for me is Scrapbook

Rated 5 out of 5 stars

Fantastic extension.

I wish this could also download a copy of the page for future reference. I need to be able to snapshot pages and return to them for much later use. Pages often go missing.

I've been using Zotero but it's like doing needlework with a harpoon.