Recently I have not been able to login to other websites from my emails when using FireFox as the browser. ie: Windows10 Xfinity Comcast email attempting to open a Publix supermarket web site. Enter email and password and click. Command accepted but no login. Still have same page. Works fine if using Chrome, Edge or DuckDuckGo. Also other file download issues from some web sites occasionally hang up, downloading forever unless, stop download and reload the page. Have been using FireFox for years with no problem on this system.