We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Can't open outlook online

more options

Hi there,

I have problem to open my outlook online, office.com with Firefox latest version (88.01). I can open it on Chrome without any problem. I have the macbook pro with M1 chip. MacOS updated to latest version. Any idea is welcome. Thank you in advance.

Hi there, I have problem to open my outlook online, office.com with Firefox latest version (88.01). I can open it on Chrome without any problem. I have the macbook pro with M1 chip. MacOS updated to latest version. Any idea is welcome. Thank you in advance.
Captures d’écran jointes

Solution choisie

Hello shuzihank


I use this same version of firefox, and I can use outlook without any problem, but if you are having this problem, I suggest you try to reinstall firefox, remembering that this problem may be on your computer and not on firefox.


Signed Luis Davi

Lire cette réponse dans son contexte 👍 0

Toutes les réponses (2)

more options

Solution choisie

Hello shuzihank


I use this same version of firefox, and I can use outlook without any problem, but if you are having this problem, I suggest you try to reinstall firefox, remembering that this problem may be on your computer and not on firefox.


Signed Luis Davi

more options

Hi shuzihank, that's not a very useful error message, is it.

Does that occur before the sign-on screen, during sign-on, or when redirecting back to the Inbox?

I know some features of the site don't work properly without cookies and local storage being fully enabled. For example, because I use the "Delete cookies and site data when Firefox is closed" setting, I needed to create an exception (using the button to the right of it) for the various Outlook sites (outlook.live.com, outlook.office.com, outlook.office365.com).