I've been on Aurora on OS X for about 6 months, after having moved to Beta during the initial switchover to the quarterly release cadence. The initial cutover and probably the following six months were kind of rough, but I now am seeing the benefits of the change. The improvements to the memory management would have probably been a year more in coming under the old scheme. I've used Chrome at length, and it's a very fast browser, but for me on OS X the tab process model results in significantly higher memory usage. Ymmv as always.
What I find odd is people's vicious condemnations of a still largely volunteer project vs. a program (Chrome) by a huge corporation that is leveraging a near-monopoly in internet search advertising to produce it. Chrome *should* be wiping the floor with Firefox on any possible dimension. The fact that it's still even on the field with Chrome and in some cases not far behind in performance I find remarkable.
As for the original linked article on this thread: >Infoworld. I actually read it, and it's some guy's whiny rant that Firefox has a bug that broke his favorite embedded editor, thus Firefox's rapid release schedule sucks. Will he also write a blog post when the next Chrome update perhaps breaks TinyMCE? If he does, it will be just as pointless and stupid a post as this one was.