What does زر ترجيع سريع 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 ترجيع سريع?

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

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

Mozilla

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

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