I have 4 tabs on my home page. 2 of them open normally, 2 do not. If I click on the address bar of one of the tabs that does not load, a list of recent URLs drops down, with the URL of the tab on top. At the end of the URL, is the work "Visit". If I click on Visit, the URL loads. The other 2 tabs load normally. I am on Windows 8.1 and have the latest Firefox version. I believe this just started to happen after I upgraded. I have tried to use the troubleshoot Restart with add-ons disabled. Did not solve the problem.