Mozilla Firefox/Platform Engineering Update 38.3

This engineering update is also available on the Platform/2015-03-03 wiki.

Firefox Release Schedule

The next merge date is March 30, just four weeks away. Firefox 37 and 38 releases have been moved up one week to avoid conflicts with holidays. Firefox 38 will be the “spring thing” Firefox release and the next ESR, retiring ESR 31.

The new “Tracking Firefox” dashboard shows tracked bugs for the Aurora and Beta releases.

Upcoming Outages

The next Tree Closing Window is scheduled for Saturday, March 14.

MemShrink

A new Windows-only “address-space” memory reporter (bug 1134030) landed which may help debug Windows graphics and video memory usage. If you have other ideas on how to measure Windows graphics and video memory usage, contact Nicholas Nethercote.

Shumway

Shumway has now been enabled (in the Nightly channel only) for playing IMDb trailer videos. Shumway made some headlines a couple weeks ago (TechCrunch and CNET) when it was enabled for playing <a href="http://www.amazon.com/dp/B00JG8GOWU"Amazon product tour videos.

DOM

Service Workers (bug 1059784) should land soon. (Famous last words.)

IndexedDB performance work will also land soon: bug 866846 will enable SQLite’s WAL journal and bug 1112702 will change transactions to be non-durable. These SQLite options favor performance over durability like Chrome and IE do. They do not increase the risk of database corruption.

Conferences

Mozilla’s Firefox OS team is at the MWC 2015 (Mobile World Congress) in Barcelona this week, announcing new Firefox OS partners, markets, and hardware form factors. Including sliders and flip phones!

Mozilla is also at GDC 2015 (Game Developer Conference) in San Francisco, where Epic Games and Mozilla announced Unreal Engine 4.7 support for HTML5/WebGL export.