Mozilla's Firefox 7, slated to ship in late September, will be significantly faster because of work done plugging the browser's memory leaks, a company developer says.

Mozilla developer Nicholas Nethercote credited the "MemShrink" project for closing memory bugs in the browser and producing a faster Firefox.

"Firefox 7 uses less memory than Firefox 6 (and 5 and 4): often 20% to 30% less, and sometimes as much as 50% less," Nethercote said in a blog post Tuesday."

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