Google discriminates Firefox users.

So since yesterday my reCaptcha codes were extremely hard to read, after a bit of investigation, it turned out that installing User Agent Switcher and changing my user agent to Chrome 32 on Windows 8 (as opposed to Firefox Nightly on Linux) it brings back the more readable images. I've switched the user agent back and forth a few times to confirm that it's the case and it is, any reason as to why it's happening other than "you're not using our product, so we'll serve you harder images until you decide to use Chrome."?Also excuse me if it's a wrong group to post about it but I couldn't find any complaints-specific section on their contact page regarding reCaptcha. -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://groups.google.com/group/recaptcha. For more options, visit https://groups.google.com/groups/opt_out.