This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Outlook.com won't open on Firefox 88.0. It opened before the recent update. I have Windows 10.

more options

Outlook.com won't open on Firefox 88.0. It opened before the recent update. I have Windows 10. Outlook opens on other browsers I have tried, so I don't think it is my computer. What can be done to fix this?

Outlook.com won't open on Firefox 88.0. It opened before the recent update. I have Windows 10. Outlook opens on other browsers I have tried, so I don't think it is my computer. What can be done to fix this?

All Replies (5)

more options

Well, the website is functional; as shown in the pic.

So i think its something on your end.

First try getting into outlook from a round about way, via a google search. Sometimes this helps to reset the cookies.

Secondly, try restarting FF in safemode and retry site.

Go to FF Menu > Help >Troubleshooting

more options

Hi talltalestogo, what happens when you try to open Outlook? For example, is there an error message, blank page, loops around between login and mailbox, something else?

If you are using an old address, try a recent one from your history that was successful, and see whether that makes any difference. From my history, for example:

https://outlook.live.com/mail/0/inbox

Note: if you restrict cookies, that can be a problem for Outlook sites. I needed to add an exception to open messages in a new window, for example.

more options

All I receive is a loop of the Outlook envelope open. A Big "O" and a envelope with a checked blue piece of paper sticking out, and underneath this a thin, blue circle rotating and rotating and rotating.

more options

I have been able to open my hotmail account in Microsoft Edge and Google Chrome without any problem. Only in Firefox and only after the recent upgrade.

more options

try the FF troubleshooting mode then retry site:

FF Menu bar > Help > troubleshoot