STR: 0. Create a new user profile. 1. In the address bar, enter "cnn.com". 2. See that "http://www.cnn.com/" loaded. 3. Open a new tab. 4. In the new tab's address bar, enter "cnn.com". 5. See that the address bar will autocomplete "www.cnn.com/". 6. Use the Backspace key to delete the trailing "/" character. 7. Hit the Enter key to load "cnn.com" again. RESULT: Nothing happens. No page loads. This is a regression in Nightly 41.
Marco, does this look like a regression from your unified autocomplete changes in bug 1168811? This is the regression range for this bug: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=bea6758824d9&tochange=6b20dd2e20cc
fixed by bug 1172937.