If there is any text in the location bar when I open a new tab, the text "about:newtab" briefly flashes in the location bar before being cleared.
Bug 716108 seems blocked for now, I think we should fix this first on its own.
Created attachment 598234 [details] [diff] [review] patch v1
Mozilla/5.0 (X11; Linux x86_64; rv:13.0a1) Gecko/13.0a1 Firefox/13.0a1 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:13.0) Gecko/13.0 Firefox/13.0a1 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/13.0 Firefox/13.0a1 Setting to verified on F13-latest Nightly. No flickers are visible when opening a new tab with text is entered in the location bar.