What does Slightly Frowning Face look like on Mozilla?

On Mozilla it is the design shipped in Firefox OS 2.5, shown above at full size. Older revisions are listed beneath it.

When did Mozilla add Slightly Frowning Face?

Mozilla first drew Slightly Frowning Face in Firefox OS 2.5, released January 30, 2016.

Mozilla Foundation has shipped 1 version of Slightly Frowning Face. Each is dated, so you can see when the design changed.

Mozilla Firefox OS 2.5

Mozilla shipped a new design for Slightly Frowning Face in Firefox OS 2.5, released January 30, 2016. The previous design is shown beside it.

The first Mozilla release we hold for this emoji.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Slightly Frowning Face look like on Mozilla?: On Mozilla it is the design shipped in Firefox OS 2.5, shown above at full size. Older revisions are listed beneath it.
When did Mozilla add Slightly Frowning Face?: Mozilla first drew Slightly Frowning Face in Firefox OS 2.5, released January 30, 2016.
How many times has Mozilla redrawn Slightly Frowning Face?: Mozilla Foundation has shipped 1 version of Slightly Frowning Face. Each is dated, so you can see when the design changed.