In the event of a Sidewise/browser malfunction, or accidental closing of a branch, the ability to save all tabs (including hibernated) to a folder in the bookmarks would be very useful.
Currently, I manually hibernate everything, and then individually wake trees that need to be saved. I then use the "FreshStart - Cross Browser Session Manager" extension to save these tabs. Unfortunately, it is a slow method when I have a large number of tabs in a tree.
Saving the bookmarks to a folder like FreshStart does would be useful. Each folder in Sidewise will correspond with a folder in the bookmarks.
This is just an idea (and a bad one): a 'metadata bookmark' could be saved as well to record the state/location of each tab in the branch, as well as its labels/highlights.
P.S. You may want to take this into consideration before implementing "non-core features" -- even if I suggest some! ;)
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