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The user is not able to manipulate tabs, so the user has to navigate through the list of folders and subfolders (that could be large) every time he want to open its bookmarks. If he wants to work in multiple folders simultaneously, this becomes very inefficient if the list of folders is big.
Error:
Because Currently, this design does not support recovering from deleting a bookmark or folder, but we hope to change this in the future (either a confirmation pop-up or something). However, because bookmark area is larger, it is easier to hit the correct bookmark and therefore the error rate is reduced.
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