My Android Firefox bookmarks were never properly syncing from my desktop Firefox. Probably due to an old version on the very old computer (not possible to update). Those were the desired set. Today I thought I'd be smart and make backups of the desktop bookmarks (both HTML and .json). Then I deleted all the bookmarks from my Android phone. But I can find no way to manually import those backups to my Android phone! So now I have NO bookmarks. Since sync doesn't appear to be an option, is there any way to get my bookmarks back?