Half the time I can't see captcha with firefox, how do I fix this?
Many sites, I go to make an account, can't see captcha, then things get hung up.
For example: https://www.openmailbox.org/#register "I'm not a robot" box is not visible.
Using 38.0.5 adblock plus, flash, quicktime, java, the standard stuff.
ప్రత్యుత్తరాలన్నీ (2)
Try disable AdBlock and NoScript if you have installed too, some time they can block captcha.
Note that you always need to remember that if you use extensions that can block content that you need to check if such an extension isn't blocking wanted content if you notice that content is missing and fails to show.