I just listed the recent changes but teachamantofish also saying that it started a week ago, so it may not be because of the change of browsers.

I never seen the button, but it would be nice if the redirect wouldn't be there instead of needing to verify that I am real.

I do have Adblock Plus, as I always had.

One change I made lately is that I had to switch to Chrome. FF was just really acting up.

The other thing I noticed is that when I open a second tab, 3rd, 4th, the message is more likely to come up. Should that matter?! How many tabs I have open?

It is happening to me too. What I don't understand is that I am logged in, so why would I be a robot?!