Try using just https://login.live.com and after you are logged in, save the address as a bookmark.

The URL you suggested gets me to the main Microsoft account page, after entering my username and password. On that page I found "Looking for your Microsoft email? followed by a link "view inbox". Clicking that gets me to the same hang up page I described earlier.

Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies
  Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

• Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
• Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe websites. Are there any problems?

Then restart.

I could not get Advanced button to repond, maybe some kind of administator privileges are required (I'm on my own PC however).

Anyway I solved the original problem by using the Refresh option in Firefox. Now the Outlook site and inbox opens as it should.

That was very good work. Well done. Please flag your last post as Solved Problem so others will know.