What does Montaña Rusa 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 Montaña Rusa?

Mozilla first drew Montaña Rusa in Firefox OS 2.5, released 30 de enero de 2016.

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

Mozilla

Mozilla Foundation has drawn Montaña Rusa once. Every revision Mozilla has shipped is below, newest first.

What does Montaña Rusa 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 Montaña Rusa?: Mozilla first drew Montaña Rusa in Firefox OS 2.5, released 30 de enero de 2016.
How many times has Mozilla redrawn Montaña Rusa?: Mozilla Foundation has shipped 1 version of Montaña Rusa. Each is dated, so you can see when the design changed.