Several days ago, my Firefox stopped working. I would get this response: Hmm. We're having trouble finding that site. We cannot connect to the server at package.onesearch.org. I tried quitting Firefox and re-opening - with same result. I tried removing all Firefox software/icons from my Mac (Version 10.13.3) and downloading Firefox 58.0.2.dmg and followed the How To Download and install Firefox on Mac instructions, but the end result was a blank page from package.onesearch.org/ followed by a lot of characters. I did notice that the steps the download took me through differed in many ways from the How to Download instructions just mentioned above. When I try the Troubleshooting Information - Automatically add button, it takes me to an Add Ons screen with We're sorry, but we can't find what you are looking for. When I try "try these manual steps", there is no menu item called Help. In fact, there are no menu items at all. This is very frustrating. I am not tech savvy. I am 70 years old and live in Lexington, Nebraska, USA.