The latest Firefox and Chrome updates are labeling websites that contain forms but do not have a SSL certificate in use as not secure, i.e. HTTP instead of HTTPS.
These updates specifically deal with pages that include password fields, and in Chrome, credit card fields, and will put warnings in the address bar to explicitly indicate that the connection is not secure. This is part of a long term plan by Google to encourage website owners to deliver all of their content by HTTPS.
If you need an SSL certificate we can install one on your website for only $99/year, although you may need to tweak your website code to force the use of HTTPS. We also offer Extended Validation SSL certificates (green bar) and Wildcard SSLs for use on multiple sub-domains.