Consumer RAM Firefox increasesconsiderably over the versions and Mozilla has just discovered a wayto reduce it, and this requires JavaScript. As we saw in early June,Mozilla takes the problem of memory consumption of its Firefoxbrowser seriously and to solve it set up the project MemShrink.

Thanks to him, the teams were able toidentify solutions to reduce consumption of memory related toJavaScript, and more particularly to memory fragmentation it causes.JavaScript uses 1 MB of memory blocks each. Objects are placed fortreatment and then disappear, removing those blocks. But sometimesthat of all the objects in a block, because this is only one intendedto be used for a longer duration. Suddenly, the "place"that takes the whole block is retained.

Gregor Wagner has been suggested toseparate the JavaScript objects into two categories: those used bythe Firefox browser, and those used by the websites.

The result is that if you close a tabgroup, memory consumption may decrease dramatically, up over 80%.Other ways to improve the sake of vivid memory consumption can alsobe found.
The fact is that this new managementwill be implemented in JavaScript objects that Firefox 7.0 isscheduled for September, while Firefox 6.0 should soon emerge.