I'm currently using an early 2006 iMac with Core Duo and 2GB of memory, running OS X 10.6.8, while my main computer is being repaired. For two years I thought i

I'm currently using an early 2006 iMac with Core Duo and 2GB of memory, running OS X 10.6.8, while my main computer is being repaired. For two years I thought it was dead (or on its last gasp), after some futile attempts to revive it with an external HDD. Finally I managed to boot it with an USB flash drive and later transferred its contents to an external USB hard drive. Firefox is the only browser that runs comfortably on it. I'm using a lot of extensions, including ABP with multiple filter lists. After disabling caching on hard drive, I'm keeping around 25 tabs, sometimes 30 or more, and there's still RAM to spare, and the CPU isn't getting pounded. Of course, browsers should be optimized for current use cases and computers, but what I've experienced for the past two weeks really changed my impression of Firefox as a bloated and slow browser that was only fast in comparison to old IE.