[Grrr] How to recover bookmark folder?

[littlebigman]

Hello

I removed a folder from the Bookmarks bar, thinking this would only remove it from the bar but not delete it entirely.

Now I lost ten's of sub-folders

Is there a way to recover the delete folder?

Thank you.

[Andrea]

I made the same mistake. Is there any solution? Thank you.

[walber01]

LOOK THIS IMAGE
FOLLOW THE FOLDERS
look for bookmarks.bak that is a last backup of your BM.
open it in another browser

[Andrea]

I've already seen your post before asking my question. However, in my folder, there is no bookmarks.bak, only the file with the same name but without extension and current bookmarks inside (bookmarks after the deletion).
If you have any other suggestion let me know. Thank you for your answer anyway.