No, I was not in safe browsing mode. Let me fill you up a bit more.
I had already connected to many of the links in the above page and had been browsing normally for about 20 minutes when this happened, and it happened only once. After your post here, I went back again and did the same but no warning this time. Could it have been a spurious message?
It is a pity I panicked and failed to note down the link.