I am guessing that you are posting from a mobile because you have trouble with your Desktop machine.

• see How to remove the Babylon toolbar, home page and search engine

You will need to uninstall Babylon using your Operating System (In Windows the Control Panel). Then you will need to reset some of the settings that have been changed. As explained in the linked article there is an add-on to help with that.

"More system details" shows:

• User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0

... which is Windows 7 and Firefox 23 for desktop. I'm changing the product for this question from "Firefox OS" (the Firefox mobile OS for smartphones) to "Firefox".

You can use the SearchReset extension to reset some preferences to the default values.

• https://addons.mozilla.org/firefox/addon/searchreset/

Note that the SearchReset extension only runs once and then uninstalls automatically, so it won't show on the "Firefox > Add-ons" page (about:addons).

If you do not keep changes after a restart or otherwise have problems with preferences, see:

• http://kb.mozillazine.org/Preferences_not_saved

See this two removal guide http://www.yac.mx/en/guides/browser-hijacker-removal/20130814-how-to-remove-babylon-search-toolbar-through-isafe-virus-removal-tool.html

https://support.mozilla.org/en-US/kb/remove-babylon-toolbar-home-page-and-search-engine

Please do not use the YAC Virus Removal Tool that was linked in the previous post. That tool is suspicious according to the comments in this malwaretips thread.

See these Mozilla Support articles for help removing Babylon and other potentially malicious software (the second article lists recommended malware removal forums if you need more help):

• How to remove the Babylon toolbar, home page and search engine
• Troubleshoot Firefox issues caused by malware