Since the official release of Firefox 9 is today, it seems like an appropriate time to revisit my post from a few weeks ago complaining about Firefox’s poor performance on Linux to see if anything’s changed.
Good news. It has!
After my post hit Hacker News, a couple of people at Mozilla reached out to me to see if they could help run down the problem. They said they knew about the problem (which appears to center around low-level weirdness in some popular Linux filesystems), they had been working on it, and I could test out their work by switching from using the then-current release version of Firefox to using Firefox Aurora.
Rest here