I've been digging and searching the web for an answer to this, but to no avail. What is causing this:

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As you can see, it makes it hard to read numbers. Setting Firefox to safe mode does not fix it.

A bit more info, though this is clearly not a fix.

Disabling the font for the top bar made things normal again:

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6

1 Answer

I found the problem - emojione. I was tipped off by a suggested question in the sidebar of this question: EmojiOne Color font doesn't replace black and white emoji font in Firefox or Chrome

While the demo page doesn't show these number emoji, I did notice some of the other symbols were there. Removing the emojione package has returned my numbers to normal.