Hi andy82997gmail.com, what kind of information are you talking about? I noticed you included a link to a Department of Housing and Urban Development PDF. What was that for?

There are a number of aspects to being safe and protecting your privacy on the web.

When you visit a website using Firefox, the browser usually will allow the site to set and retrieve cookies. This allows the site to know your browser from all the other browsers visiting the site. Most cookies do not contain personal or confidential information, but depending on the site you visit, it's possible. Many (most?) sites also include content from other servers, and these servers can set and retrieve their own cookies, often called "third party" cookies. These tend to be for tracking your online activity to show you more persuasive advertising. Firefox lets you manage all kinds of cookies. For more information, see this article: Cookies - Information that websites store on your computer.

Using Firefox, you also can store information about your browsing: bookmarks, history, information entered on forms, logins, and so on. Are you concerned about any of that information? You could try this feature: Private Browsing - Use Firefox without saving history.

When you browse the web (in regular mode or private browsing mode), intermediate service providers generally capture information about the sites you visit in their web logs (e.g., date, time, URL). Some people who do not want their ISP to track their browsing will sign up with a VPN service. Of course, you need to trust the service: there is no way to request a URL and not have anyone see it at all.

Finally, Firefox allows you to install add-ons, either from the Firefox add-ons site or bundled with other software you install. You should keep an eye on add-ons and all other software you install to avoid spyware or malicious programs.

I thing you can not do that, because firefox is a browser, firefox it is not related with google, yahoo or another search engine that keep all these informations and show these info every time somebody ask for them by typing keywords.

thank you

You can set up Firefox to block cookies by default, and just make exceptions for cookies that you need. You can also add the extension Modify Headers and use it to filter ETags, which are often used for tracking. If you really do not want sites to know where you are, you can use a proxy service such as Proxify.

this is personal information HUD is illegally posting.

If you think there is personal information being posted, I would contact whomever posted it and request a takedown. However, I don't know why you think Firefox has anything to do with this.