User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0 (Beta/Release) Build ID: 20130618035212 Steps to reproduce: Correct address to log in to webmail for a domain is https://outlook.com/foo.com Actual results: Address is rewritten as https://www.outlook.com/foo.com which results in a 404 Expected results: Firefox should not have changed the URL as entered. I have already changed the config to the following: browser.fixup.alternate.enabled;false
WFm with FF22 on Win 7. https://outlook.com/ redirects to https://login.live.com/ Could you try with a clean profile please: https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
Clean profile resolved it, thanks! Strange that this is happening on dozens of machines used by many different people.
Before creating new profiles and migrating your data, try in safe mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode The issue could be a faulty add-on. You can reset your profile too: https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems
(In reply to Loic from comment #3) > The issue could be a faulty add-on. Almost certainly. Closing based on comment 2.