Hi,

What do you mean by "whenever I open a new article"? Do the added shortcuts have the "Sponsored" label? Does the issue persist if you enable sponsored shortcuts and then disable again?

When I say "open a new article," I mean that I click on a link in, e.g., Daily Kos, to read a story. When I exit Firefox, and later click on the Firefox link, shortcuts for the previously-opened Daily Kos stories appear, along with the shortcuts that I manually have pinned previously.

The added shortcuts have no label that I can determine.

I have tried checking Sponsored Shortcuts and unchecking it several times, including now that I have read your response. The unsponsored shortcuts still appear.

Now what?

So, those are not sponsored shortcuts. They are general shortcuts for the websites you visited. I'm not sure you can disable them, the only thing I can suggest is adjusting the number of rows and/or pinning more shortcuts, so that there are fewer free tiles left.

Ahh, that's answers it. No wonder I cannot prevent them from appearing automatically.

Thanks for your help.