~200 ^_^, all in Firefox: On my 32 bit XP system used for email (Eudora) and Flash/video, 17 in 2 windows.

On my 64 bit Linux system, two instances: ~80 in 4 windows for system (e.g. BackupPC console) and technical stuff (e.g. HN, Clojure development) and ~100 in 8 windows for general news, politics, recreation, etc.

83, across three windows in two browsers (chrome + firefox). I should probably cut them down a bit...

For me:

General + site related(email, actual site, admin panel, twitter, facebook etc.): 19

Entertainment(online radio/HN): 2 (i usually try to do all the distracting stuff in a single tab)

Business related resources: 50

32 Here. I treat them, with some exceptions, as a stack of stuff I've saved to read later. The exceptions are reference stuff I keep coming back to and HN.

What happens if your browser crashes?

firefox saves your browsing history, so it just reloads when you come back(and you can even hit the back button)

11. I have ADD so I get upset when I have too many open, it's better for my concentration to close them down except for a select few, including HN.

39, typically anywhere from 25 - 75 if I'm working on something that requires me to do a lot of web research.

I can have as many 142 tabs open. Performance on firefox is good, although they do eat memory :-)

I have 42 tabs open. I use Firefox's tree tabs add-on. After pruning, I now have 22 tabs open.

12, but normally around 20.

13, including the 6 (such as this one) that I just opened from HN.

I have 5 tabs open, including this one.

30, and it's usually higher,

2, but its usually near 10.

3 - but usually around 10.

12