Hello, I just received my new computer running Windows 10 Pro 64 bits. I installed Firefox. Everything was fine. I installed other programs. Including a 2007 version of FSX. I do not know what could have happened, but now Firefox no longer launches any site. The tabs that were already open are now blank. The address field says "Enter a search term or address". If I type an address or search term, for example "nose", the address field contains: https://www.google.com/search?q=nose&ie=utf-8&oe=utf-8&client=firefox-b-ab but it is grayed out and the page remains white. If I then type "foot" in the Google field, nothing changes in the address field and the page remains blank. Ditto if I restart with the modules disabled. I launched the "Repair" Firefox. Without success. The following tab appears then in gray, but with an empty page: https://www.mozilla.org/privacy/firefox/ I uninstalled Firefox, passed Ccleaner, removed all traces of Mozilla from the system, restarted, reinstalled Firefox 56.0.02 (64-bit). The problem persists. No malware, no virus. In connection settings, I went from this: "Use system proxy settings" to this: "Automatically detect proxy settings for this network". And I restarted Firefox. Without success. Same thing when I chosed this: "No proxy". I have been using Firefox since 2006 and have never encountered such a problem. Thank you for helping me. Regards, Joana