The only thing I miss after switching Safari->FF (moved away from OSX) for regular browsing is that all 'incognito' tabs in safari are completely isolated from

The only thing I miss after switching Safari->FF (moved away from OSX) for regular browsing is that all 'incognito' tabs in safari are completely isolated from each other and share no cache, cookies, bla. This seems like a small thing and I barely noticed it at the time I switched TO safari for all non-devtools related tasks (battery and perf was better on my lappy) but now, I do miss it. Otherwise, I've no probs with FF these days. 49 seems solid on BSD, at least.