Computer noob here. I was trying to check my school email today and went to go log in, but NoScript goes and blocks the page saying that there was a potential cross-site scripting attempt. I thought it was strange because I was able to access my email no problem yesterday. Today when I started Firefox a new tab did pop up with the NoScript site saying that it had been updated. I thought maybe this issue was related to the update and wasn't sure what else to do, so I clicked "temporarily allow all on this page" under the options for NoScript so I could access the login page. Well now the login page looks different. Usually I am brought to a Microsoft Outlook Live page, but this time it shows up as Microsoft Office 365. I wasn't sure if the school changed the page, so I went and checked on my sister's computer. The normal login page shows up on hers. She does not have NoScript installed. Here are some screenshots:
The normal login page that shows up on her computer.
Login page that shows up on my comp as of today.
So I guess my main questions are: Why does it look like this now, and is it safe to login? Also, is that "XSS attempt" thing bad?