Open email tabs closing when i click on them
At night i 'shut down' my PC. Before doing so i have 3 open tabs in Firefox . My home page.....my yahoo email....my Gmail. I close Firefox then shut down my PC In the morning i start up my PC. I then open Firefox and can see my 3 tabs open. When i click on yahoo mail or gmail ....the tab closes..... I then have to open a new tab and go through the process of signing in to my email again. Why are these tabs closing automatically? [ this has been happening for about one month now] I have windows 10. Windows and Firefox are both up to date Thanks for your help!