Dear Community, Would be most grateful for any replies to this post. Today, I have tried to get into my Outlook e-mail. I usually use Firefox to get into it. But I tried, but the system kept giving me the attached error message - internal service error 500. Strange thing about this was, when I tried to get into my e-mail using my phone, it worked. I then used the library computer, and that worked, too. I tried my laptop again, but this time went into the DuckDuckGo browser. It worked with this. I therefore assume that the Firefox browser may be the problem. Can anybody suggest a workaround? Have attached a screenshot of the problem, and the error message that I get, Marek Wesolowski