Since a few days (maybe two weeks?) i sometimes get the problem that when i type in a new URL (or the beginning of a URL) the drop-down appears, that's fine so far. But then when i press the down array key, the first (2nd, 3rd, etc.) won't be selected, instead in JS Console this error appears: Error: this.activeChild has no properties Source File: chrome://navigator/content/urlbarBindings.xml Line: 373 Neil also wondered how this code ever worked since mSelectedIndex only defines a setter, but no getter.
Opening a new tab (or using a old one) doesn't work, in a new window everything works again.
I did not see this bug occour for a long time now, i guess it's wfm.