Right now I have firefox 43.0 for linux and to upgrade to anything beyond firefox 45 will require nearly a total system overhaul which I'm not about to do because I still like my old computer with the real keyboard.
So anyways in firefox 43, I tried the test recaptcha site here:
and when I tried clicking on the box where the checkmark goes, nothing happens for a long time then after about 5 minutes, I get a message stating that I'm using an unsupported browser. This was Firefox 43.
I also ran the same test in Opera 11.64 and when I click the box, the blue loading circle was appearing constantly but nothing else happened.
Is there anything I can do to get the captcha to work again without going through a system overhaul and being forced to use new technology? (example: could I adjust a simple browser setting)?