Typical web browsing (which these days means lots of flash :-( as well). Safari just seems to accumulate more cruft over time, using more memory, and generally getting slower until it crashed (every couple of days). FireFox in my experience appears to be much more kind on memory usage 200-300 MB over time, as opposed ti Safari (500-600MB over the same timeframes). Even with the extra memory, it didn't appear to perform any quicker. I really wanted to standardize on Safari (have used it most of the last 3-4 years, but the latest version of FireFox on OSX is really quite good, including:
- Inline support for PDF's
- Less memory usage
- more compatible with my range of websites
I think/hope Safari/Webkit will continue to improve, but for me, for now, FireFox is just a better browser on OSX (this coming from someone with a whole family of Mac computer users, an Apple TV, and Apple Extreme, iPhone, etc...).