It isn't just the tor browser bundle that causes this. I believe it has more to do with either bots using tor to access google or google forcing captcha on access from known tor exit nodes. I have seen the same behaviour from vanilla firefox while trying to use google from tor. I would still rather input captcha than use bing!
> I believe it has more to do with either bots using tor to access google or google forcing captcha on access from known tor exit nodes.
Yes of course, but I don't care. I want to search while using Tor.
> I would still rather input captcha than use bing!
Google uses really, really terrible captchas for this. Usually more in a row, with no indication if you did the previous one right or not. And sometimes they just refuse to show the results, period.