119 as of right now. Even did some cleaning yesterday and closed a lot of tabs but then I had to research some stuff and... 'new tabs happened'. I'm pretty sure I must have breached the 200 barrier a couple of times. Sometimes I manage to get it down to just a handful but I'm a packrat by nature. Add to that my system which has a 4.8GHz I5 SB, 8GB Ram and 240GB SSD and things just get worse because the computer handles those tabs with ease as long as Firefox/Flash doesn't bug out on it. It's like giving a hoarder an empty 747 aircraft hangar and telling the person to have fun with it
At minimum 40 on one group only, (count at leas 3 groups). Using Firefox. I miss a way to save group of tabs and open them at once, like maxthon. Actually lot of tabs create a lot of problems in firefox. Inactive groups are still in memory. We need a more complex and sophisticated tab management, and ofcourse with much memory management.
Why would you have 100 tabs if you're not currently using all of them. Just save and close them. There's not much point in having that many if you can't navigate through all of them, and I know I at least wouldn't find my way very fast in that many.
When I'm working on a project I clean my bookmarks bar and save pages within folders there, so I don't have ridiculous number of tabs open. I have open only the things I'm currently looking at. If I have something for use later, or a different topic entirely I would either use different browser window and often minimize to the taskbar so it doesn't get in the way.