I downloaded Chrome and used it but still kept Firefox as my preferred browser. But after I installed Chrome, it became harder and harder to access my gmail account from Firefox. So, I made every suggested tweak to every part of my system but it did not help. Finally, I uninstalled Chrome and updated everything. But since I uninstalled Chrome, the problem got worse and now it is almost impossible to load Gmail from Firefox. So, although I have spent hours on forums addressing this problem, nothing helps. Yet I have no trouble with gmail with any other browser, using my same computer and exactly the same settings. This is very frustrating and time wasting and I wish I could get more direct help from Firefox instead of being left to post a reply into cyberspace. The Firefox community is very smart and resourceful, and I wish someone from Firefox could see this and address it directly as well. The only thing is, I am not sure this started at Firefox. On lots of the forums, I saw comments taking them to task for the issue. But in my experience it started after using Chrome, even though it actually got worse after I uninstalled Chrome. Maybe Google is blocking Firefox, rather than Firefox blocking Google.