Firefox 7 will use 20-50% less memory

For many years, Firefox developers have denied browser problems with memory usage, but in the end they recognized the obvious and optimized. “Firefox 7 uses less memory than Firefox 6 (as well as 5 and 4): often 20-30%, and sometimes 50% less. In particular, memory usage will not increase if you leave the browser open for the night and it frees more memory when closing tabs, ” said Nicholas Nethercote, one of the Mozilla developers, a member of the Firefox Memory Optimization project at MemShrink .