Please don't link to mac4n6, it serves malware on some page loads. The article author is aware of it but apparently doesn't have the ability to fix the issue
To save others a click, that's the author of the website confirming that the site was compromised by a code injection attack via Squarespace control panel.
After doing a quick sweep of the network and processes, I didn't find anything overtly malicious (unless you count 6 MB pages for a blog, 150k lines for squarespace's JS, and 3000 rules over 400KB).
When I last examined it, the malware was loading from a domain called eventsbysteph. If the page still pulls js from there then the malware's still around (doesn't activate on 100% of loads)
I'm only getting typekit, squarespace, the auther's other domain for the blog, and google analytics -- with ublock off for all pages.
What kind of malware did you run into?
It was a malware dropper masquerading as a Firefox update. I hit it when I visited this page a few days ago and so did someone else.