What does زر سريع لأعلى 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 زر سريع لأعلى?

Mozilla first drew زر سريع لأعلى in Firefox OS 2.5, released 30 يناير 2016.

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

Mozilla

Mozilla Foundation has drawn زر سريع لأعلى once. Every revision Mozilla has shipped is below, newest first.

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