One of my favorite features on the Google Toolbar is Autofill. I can type my personal information one time, such as name, email, mailing address, and even credit card, then input it into applicable forms with one simply click on the toolbar. This saves time with online shopping, and ensures accuracy in the forms I fill out. Additionally, Autofill is smart enough to remind me when I can use it by highlighting fields it recognizes like this:

The autofill feature on the Google Toolbar recognized all of the above fields except Company Name. Clicking one button fills in the yellow fields. This is a good thing. However, there are times when the Google Toolbar's autofill feature falls short. Sometimes it doesn't accurately recognize fields. For example, Autofill has a tendency to place the name in the email field and email in the URL field when autofilling comments on Movable Type blogs. I haven't figured out why this happens, so let me know if you have.

Another Google Toolbar Autofill issue is caused by a conflict with certain web site form color choices. Some web designers have chosen to use dark background colors on their sites and have carried the dark colors into their form field backgrounds. Rather than the more common black text on a white background filling the form fields, white text on a black or near-black background is used. This works fine until the Autofill feature on the Google Toolbar steps in making the form look like this:

While the Website and comments field work fine in the above example, the first two fields white text on a yellow background. I couldn't tell what I was writing and had to highlight my name and email address to make sure I had typed them in correctly.

What should designers do to deal with this? That's for them to decide. However, if someone was building a site for me today, I certainly wouldn't want to use dark background colors on my form fields considering how popular the Google Toolbar is today.