I'm using the latest version of Firefox on a Samsung Tablet.
I went to the News page and I'm told the page is not secure?
I've not seen this problem on any other pages on the site.
[Edit]
It's just this current week, going back a page doesn't give that issue either.
That's odd. Nothing happened here, I have the little padlock like on all secure pages.
Is the tablet up to date and/or the browser?

I'm using the latest version of Firefox on Windows 10, and it's not secure for me either.
Not super concerned, but it is odd.
If it helps, looking at the source code, the new Serpenth image was linked as
rather than https, which is what I'm assuming made the 'not secure' thing happen (and oddly, it shows fine on Chrome (and even Edge), it's just Firefox that is stubborn)

<img src=&;http://img.subeta.net/pets/serpenth_sweetheart.png&; />
</p>Good find. I was thinking it was the custom pet image, but those are uploaded to Subeta, so that in particular wouldn't be it.