Right clicked randomly in 'Bookmarks', and clicked on sort by name. Solved.
I manually moved to bookmarks sites from imported IE6 Favorites file. Unfortunately I did not do this in specific order. I would like to know how I can arrange them alphabetically, as to do this manually would take a long time. I tried the'Manage Bookmarks' folder, and bookmarks are organised aphabetically in this window, but I cannot find out how to implement it to the 'Bookmarks' tab.

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