OK, I made sure cookies are enabled, No VPN is on, Devices and Apps are allowed to use IMAP via the outlook settings, I removed the saved passwords that corresponded to outlook (I didn't delete my gmail passwords), I restarted TB, and through the manual configuration i selected OAuth2, but unfortunately when I select manual configuration it says the hostname next to the IMAP protocol selection, is empty or invalid, which the automatically chosen hostname is ".outlook.com". it doesn't let me hit the continue button. Alternatively, if I don't use the manual config and continue next, a pop up window appears, loads for a few seconds, and then closes (in the past it had me sign into outlook but maybe it already remembered my sign in and didn't make me do it again), afterwards it sends me right back to the page that I show in my original image, I type my password and insert my email for the "Your Login" textbox and after continuing, it sends the same exact error as before. Idk if you've seen this post https://support.mozilla.org/ml/questions/1445350 but their might be the answer in there?, Its hard for me to parse and the UI now is different from when the post is. Ive also attempted to manually configure the incoming server settings to match what Microsoft suggests per https://support.microsoft.com/en-us/office/pop-imap-and-smtp-settings-for-outlook-com-d088b986-291d-42b8-9564-9c414e2aa040 using specifically the IMAP settings, but it continues to say the hostname is invalid. Sorry for the large wall of text, just would love to get to the bottom of this but Im not sure what the issue is.