Would be nice to have a feature where you could group specific bookmarks together that would show up on the bookmarks bar. Then whenever you need a different bookmark or set of bookmarks that are not currently showing on the bar, you could switch to a different bookmark bar group instead of going through the bookmarks folder and hunting down the specific bookmark that you might need. Would be great for switching between work and personal use or if you use specific sites and tools at different points during the day you could more easily and quickly switch bars to have quicker access to the specific category of bookmarks that apply to what you are doing at that time. Would be great if there was a specific button on the bookmark bar that opens a dropdown menu and would show you the different categorized bars that you have already organized and you can easily click the one you want and then the bookmarks within that group would then appear on the bar, replacing the bookmarks from the previous category/group.