FF 63.0.1 Win 10 This is what was supposedly fixed: Resolved an issue that prevented the address bar from autofilling bookmarked URLs in certain cases. If a bookmarked URL is similar to a frequently used URL, this is issue still present in v63.0.1, which I just downloaded today. Website addresses will fill in and then self-delete, so I am sitting with a blank open tab. Sometimes the address autofill but do not then unfill, but the website will not load. Sometimes the full URL will be listed below the bar and most of the time clicking on it (it says "visit") works. It is not consistent there and I usually cannot connect by filling in the address bar. Hit or miss, mostly miss. Thank you.