Hello, I am a bit concerned, as Firefox never before acted this way. Has this been reported? 0. Few weeks ago computer froze, after restart, bookmarks that I had made new had disappeared and old ones appeared, as if firefox reversed to previous saved setting from hour before freezing of computer. Now, the main ones that have been happening during last week: 1. Firefox randomly downloaded (twice during last week) some random file with random letters, for example " H3jO5Ni4m.htm". It was always one file, that was a ".htm" file, and it had 0 bites. I uploaded the file to virustotal and it brought me to this: https://www.virustotal.com/gui/file/e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855/detection I then googled about this specific problem with Firefox downloading a 0 byte .htm file, and it has been happening to people for last 6 months, not many cases, but some,still. Peoples comments implied that this is harmless and that it is a bug of Firefox. 2. Firefox today,about half an hour ago logged me out of most websites, not all, but most. Firefox never ever behaved this way and it happens only to Firefox, not any other browser that I own. During last week I scanned my computer in both normal and safe mode with: Eset Online Scanner (a one time useantivirus program), Avast, Roguekiller, Malwarebytes, Mbar (Malwarebytes anti malware), and never found anything. I consider these programs most reliable, and have been using them for years. Is it a bug of this specific version of Firefox please? I have version 105.0.1 (64-bit) and problem 1 and 2 happened since then I think.