How to Delete Browsing History on Yahoo!
Every time you navigate the web through the Yahoo! browser (or most other browsers), the history of the sites you visit is recorded and stored in your computer. Aside from this, most search engine toolbars, including Yahoo!, maintain their search and browsing histories separately from the browser in which they're installed. Regardless of the browser you use, every time you browse the Yahoo! website, web cookies are stored in your system. To delete browsing history on Yahoo!, you will need to clear this data for the specific browser you use. The steps vary slightly, but the general process is the same.
Click on the "History" button, located on the top section of the Yahoo! browser. The History panel opens up on the left side of the window.
Click on the ">>" (double arrow) button on the top of the History panel and select "Clear" from the drop-down menu options.
Click "Yes" when prompted to confirm deletion. You have cleared the browsing history in the Yahoo! web browser.
Launch the web browser where the Yahoo! toolbar is installed.
Click on the "Settings" menu and select "Toolbar Options" from the drop-down menu.
Click on the "Clear Recent Searches" button.
Disable (un-check) the checkbox that corresponds to "Include my recent searches with suggestions" if you don't want your history to be recorded. Click "OK" to confirm.
Internet Explorer 6 and 7
Click on the "Tools" menu and click on "Internet Options" or "Options" from the drop-down menu.
Select the "General" tab (for Internet Explorer 7) and click on "Delete" under the "Browser History" section. Click on the "Delete forms..." button that corresponds to the "Form data" section.
Select the "Content" tab (for Internet Explorer 6), click on "Autocomplete" under the "Personal Information" section, then click on "Clear Forms." Click "Yes" to confirm.
Click on the "Delete history..." button that corresponds to the "History" section.
Click on the "Tools" menu, click on "Options" and select the "Privacy" tab.
Click on the "Clear Now..." button that corresponds to the "Private Data" section. The "Clear Private Data" dialog box opens up.
Click on the checkbox that corresponds to "Saved Form and Search History" and click on the "Clear Private Data Now" button.