Import doesn't work Puntuado con 3 de 5 estrellas

I created one bookmark in Keepbag, then exported it.
Then I deleted this bookmark and tried to import the exported file.
0 bookmarks were added.
If this addon uses some specific format, it should be converter that can transform html/json files into this format...
Without export/import this addon will be useless - currently it is impossible to recovery data.

Esta valoración es de una versión anterior del complemento (1.0.1-signed.1-signed).