This is a common problem with FF if you have any privacy settings enabled. ReCAPTCHA does deep fingerprinting. If you block that fingerprinting it punishes you.
I've had to pay 100x bills on my monthly quota once too often, and as a hobby developer, I just can't afford trying to fight off people abusing my website every day.
Yes, resorting to fingerprinting is not ideal, but what's better, asking everyone to solve that hard captcha, or only some users?
In the end, a custom captcha is probably a better solution, even if it is easier than google's.
My favorite CAPTCHA is the one on the Arch Linux forms but I realize this cant be used many places. > What is the output of "date -u +%V$(uname)|sha1sum|sed 's/\W//g'"?
Easy to do but hard to do with computers. My second favorite are the math problems one.
However if these become popular people will just write bots for them and were back to square 1.
> My favorite CAPTCHA is the one on the Arch Linux forms but I realize this cant be used many places. > What is the output of "date -u +%V$(uname)|sha1sum|sed 's/\W//g'"?
> Easy to do but hard to do with computers. My second favorite are the math problems one.
> However if these become popular people will just write bots for them and were back to square 1.
Interesting...I wonder if they show destructive commands below a certain threshold. It would be funny if a captcha caused a bot to delete itself.