Symbaloo is not a software program, it is a website which can be set as a homepage in your browser. If you do not wish to use Symbaloo, you may change your desired homepage in the settings of your web browser.
For a detailed explanation about how to change your homepage, please visit the corresponding link to your browser:
Mozilla Firefox: https://support.mozilla.org/en-US/kb/how-to-set-the-home-page
Google Chrome: https://support.google.com/chrome/answer/95314