Re: Yawn
"Nope. Didn't have tabs, and Navigator's replacement (Firefox) will still hide the "x" closing widget when too many tabs are open"
If you'd read the OP properly, you'd have seen the reference to Navigator was in the context of bookmarks/favourites view, not tabs.
Sigh, one day people will take time to read properly before replying. Not likely, but I can live in hope.