I hibernate my windows PC indefinitely (about 2 months so far). Till firefox 11 or so I had to close it every 3 days or so with 4-5 hours of heavy browsing each day. With latest versions I go for about 8 days without close. More importantly, firefox used to slow down noticeably in between browsing before but now it remains snappy till it starts hitting the disk for paged memory. With this memory leak fixing, I hope to go longer without closing firefox.
