Editor’s note: This is a short excerpt from Nicholas Nethercote’s personal blog. Nicholas is a programmer from Melbourne, Australia, who works for Mozilla on improving the quality of software. Here’s the good news in a nutshell:
“Over the past year, Mozilla has made great progress in reducing Firefox’s memory consumption. However, the excessive memory consumption caused by add-ons with memory leaks has remained an ongoing problem.
Firefox 15 fixes that problem. We have confirmed, via in-house testing and from real-world telemetry data, that it prevents the vast majority of leaks that occur in existing add-ons.
Users who upgrade to Firefox 15 won’t have to upgrade their add-ons to see the benefits. While it is hard to predict the effect of this improvement on any individual user, many users should experience greatly reduced memory consumption, particularly on long browsing sessions. This should result in better performance, fewer pauses, and fewer crashes.
Mozilla’s MemShrink efforts are ongoing. We have various projects in the pipeline that aim to further reduce Firefox’s memory consumption, and help users understand better how Firefox is using memory. ”