Copy paste chrome://settings/cookies in the Omnibox ( or Click on Chrome menu → Settings → Advanced → Content Settings → All cookies and site data). Search for mobileads.com and richmediaads.com, click Remove all shown or delete them one by one.
1. From the Firefox button or the Tools menu return to Options – Privacy panel. 2. Select Firefox will: Use custom settings for history. 3. Click the Show Cookies button. 4. Use the search box to enter the name of the website or drill down the folder lists to locate the website whose cookies you want to delete. 5. Select […]
Open Safari if it is not already open. Choose Safari > Preferences, and then click Privacy. Click Details. 4. Select one or more website that stores cookies, and then click Remove or Remove All. 5. When you finish removing websites, click Done.