Yes, it's an ongoing project, now in week 62. To see details of what's been fixed, and where, read this: http://blog.mozilla.org/nnethercote/category/memshrin

Yes, it's an ongoing project, now in week 62. To see details of what's been fixed, and where, read this: http://blog.mozilla.org/nnethercote/category/memshrink/ http://blog.mozilla.org/nnethercote/category/memshrink/ This latest fix is for misbehaving addons. Other, previous fixes, have solved a lot of problems with FF itself. For me, it's less memory hungry than Chrome.