[clumsysmurf]

> the ux of Mozilla vertical tabs experiment is weird and IMO bad ... the tab bar goes up on the side of the awesomebar and slides it back and forth as the tab panel expands and goes back.

Yeah this seems really whack. I like what Safari did: they have a left sidebar with several tabs (favorites, reading lists, shared links). Having these independent sliding spaces overloaded in the same area is clumsy.

The problem though is there is UI hierarchy between tabs and something in the sidebar like bookmarks. I can't think of a good way to place these relative to each other to impart that relationship, which is probably why they are independent for now. Hopefully they do something about that though.

[reitanqild]

Tab Tree and TST just place them left or right of the content.

This might not be perfect for what I know but at least it doesn't move the majority of the browser controls around.