My username and password are saved on the login page

You may sometimes be logged in or have your login information displayed automatically because your username and password are stored in your browser's cache1 or settings.
If you don't want 'AutoComplete' to automatically log you in to Gmail, please follow these steps:
For Internet Explorer 6:

1. Click the Tools menu at the top of your browser, and select Internet Options.
2. Open the Content tab at the top of the dialogue box.
3. Click the AutoComplete... button, and uncheck the User names and passwords on forms and Prompt me to save passwords boxes.
4. Click OK.

For Internet Explorer 7:

1. Click the Tools menu at the top of your browser, and select Internet Options.
2. Open the Content tab at the top of the dialogue box.
3. Click AutoComplete, then Settings button, and uncheck the User names and passwords on forms and Prompt me to save passwords boxes.
4. Click OK.

For Firefox 2 and 3:

1. Click the Tools menu at the top of your browser, and select Options.
2. Select the Security tab.
3. Uncheck the option Remember passwords for sites.
4. Press OK.

For Google Chrome:

1. Click the Tools menu .
2. Select Clear browsing data.
3. Select Empty the cache and Delete cookies.
4. Click Clear browsing data.

To ensure that your data isn't saved when you sign in, please remember to leave the box next to Stay signed in unchecked on the Gmail sign in page.

1. cache: This is a place where information is temporarily stored, such as which webpages you’ve recently visited. The goal of having a cache is to retrieve data faster; for example, if you return to a webpage you’ve already visited, it will load faster.