Import and export of bookmarks is not only required to move bookmarks between Firefox and other browsers. I (and looking at other threads here many other users as well) would very much need such a feature to backup my bookmarks! I know that there is ...
The ability to sort bookmarks as per the user's needs should be a core functionality of any browser with bookmarks, in my opinion. Sorting must be possible on the device on which the browser is running. Desktop and mobile browser may be used for diff...
Such an option would also help users to easily retrieve their personal data in case the phone breaks down. An SD card can be easily taken out. The internal memory is not so easy to remove, meaning it will be difficult to clear a malfunctioning phone ...
I agree, bookmark sorting is highly important. And even more important is a possibility for offline backups of bookmarks - being it in the downloads folder or a user-decided folder.