"...Greasemonkey 1.0 which has been released earlier today is a direct response to the upcoming release of Firefox 15. If you have read the review of the new browser version you know that it ships with add-on memory optimizations that prevent add-ons from leaking memory when they are installed in the browser. Firefox users who noticed an ever increasing memory usage during sessions by the browser may profit the most from the change, as memory releasing has been optimized. The effect should be an average memory utilization way below the Firefox 14 level... . "
Greasemonkey 1.0 extension for Firefox released