How to check if your browser is automatically clearing cookies

Automatically clearing cookies can cause issues related to Sign-in problems (like not being able to sign-in or not being able to stay signed-in) and error messages about setting your user cookie.

Cookies are small pieces of information stored on your computer by your browser to customize what you see on a webpage. If your browser is automatically clearing cookies, it can cause problems with how Yahoo! sites function. You can check to see if cookies are being automatically cleared by your browser using the steps below:

Microsoft Internet Explorer:

1. Select Tools | Internet Options.
2. Select the General tab.
3. Under "Browsing History," uncheck the checkbox for Delete browsing history on exit.
4. Select OK to close the "Internet Options" window.
5. Close and restart your browser.

Mozilla Firefox:

1. Choose the menu option for your computer:
   
   • PC: Select Tools | Options.
   • Mac: Select Firefox | Preferences.
2. Select Privacy.
3. Under "History":
   
   • If it is set to "Use custom settings for history," uncheck the checkbox for Clear history when Firefox closes.
4. Select OK.
5. Close and restart your browser.

Safari:

Note: Currently, Safari does not support clearing your history when you exit. You can check if there are extensions installed that might be automatically clearing cookies.

To check Safari for extensions that might be automatically clearing cookies:

1. Choose the menu option for your computer:
   
   • Mac: Select Safari ( gear icon in newer versions) | Preferences.
   • PC: Select Edit or Tools ( gear icon in newer versions) | Preferences.
2. Select the Extensions tab.
   
   • The currently installed extensions will display.
   • For assistance with the extensions, please contact the developer for the extension.
3. Close the "Preferences" window.
4. Close and restart your browser.

Google Chrome:

1. Select Tools ( wrench icon) | Settings.
2. Click Show advance settings.
3. In "Privacy," select Content settings. 
4. In "Cookies," verify that the checkbox is unchecked for Clear cookies and other site and plug-in data when I close my browser.
5. When you are done, close the Options - Under the Hood tab by selecting the X that displays on the tab.
6. Close and restart your browser.