I mean ability to create profiles (or folders) with different bookmarks. This will allow you to conveniently organize your wishlist or something.

For example, I would like to have a separate folder for a set of selected TC`s materials, another folder for items that i need for modpack progression and a last folder for silly items that i dont really need but maybe i will craft them someday

Bookmark groups should now solve this. You can test the latest beta and give us more feedback on how it can be improved.