On 30.12.2012 19:01, Bob Goodwin - Zuni, Virginia, USA wrote: > > It appears that the option "browser.tabs.onTop" has been removed > from about:config in Firefox 17.01! > Maybe it is not present on the list but not all config options are. Try to set this to whatever value you like and restart Firefox to apply changes. Mateusz Marzantowicz