User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0 (Beta/Release) Build ID: 20140716183446 Steps to reproduce: 1. Enter a wrong url and hit enter (www.google.con) 2. While it's loading, correct it (www.google.com) 3. The right (2.)url loads 4. The wrong url (1.) loads after it bringing you to a 404 page Actual results: If you enter a wrong url and hit enter to load it and notice it's wrong, then enter the correct one, it will load the correct url but load the wrong one after forcing you to hit back to get to the right url. This happens to any url that loads slow, as it seems to que loading instead of overwriting it when you enter another url, with priority being on the first entered. Expected results: The new url (2.) entered should replace the old and the old url loading process should be terminated if a new one is entered.

Hi Dean, I have tested the mentioned issues on latest Firefox release (43.0.3) and latest Nightly (46.0a1) and I could not reproduce it. After introducing the correct URL page loads the correct one. Firefox: 43.0.3, Build ID: 20151223140742, User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0 Firefox: 46.0a1, Build ID: 20160105030211, User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0 Can you please test this on the latest Firefox release (43.0.3) or latest Nightly (46.0a1, https://nightly.mozilla.org/) and tell me if this still reproduces for you ? When doing this please use a new fresh Firefox profile, maybe also in safe mode (https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems). Thanks, Cosmin.