In my experience[0], the captchas are rotated regardless of the browser. The captcha shown each time seems to be chosen based on some sort of hidden “trust level”, which fluctuates across attempts based on your choices.
The starting level, I suspect, is heavily influenced by browser settings and many other factors. With that in mind, and assuming that
1) trust inversely correlates with anonymity,
2) people using Firefox tend to be more tech-savvy and careful about their privacy, and
3) tech-savvy people using Chrome probably won’t bother locking it down, since it “talks to Google anyway”,
I’d be disinclined to believe Google actually discriminates against browsers—no matter how compelling a narrative this may seem—until I have a complete picture of OP’s setup (from browser settings to OS and connection).
[0] Last year there was a period I was getting many captchas (either my location or AWS VPN caused me to be considered “untrusted”); I actively tried to figure out how to get past it without giving the algorithm what it wants, so I could go through a dozen of these captcha screens in one browser window. I use Safari, Firefox and Chrome routinely.
The starting level, I suspect, is heavily influenced by browser settings and many other factors. With that in mind, and assuming that
1) trust inversely correlates with anonymity,
2) people using Firefox tend to be more tech-savvy and careful about their privacy, and
3) tech-savvy people using Chrome probably won’t bother locking it down, since it “talks to Google anyway”,
I’d be disinclined to believe Google actually discriminates against browsers—no matter how compelling a narrative this may seem—until I have a complete picture of OP’s setup (from browser settings to OS and connection).
[0] Last year there was a period I was getting many captchas (either my location or AWS VPN caused me to be considered “untrusted”); I actively tried to figure out how to get past it without giving the algorithm what it wants, so I could go through a dozen of these captcha screens in one browser window. I use Safari, Firefox and Chrome routinely.