How to import a previous version of my bookmarks

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a) /u/your-username/.mozilla/firefox/mix-of-letters&numbers.default/bookmarkbackups

c) Please note the icons over the Contacts section,
click on the first icon [ Create new contact card ].



d) The section Add new contact will appear on the right.
Fill in the fields:

• 1) Display name (compulsory) (for example adam);
• 2) First name (for example Adam);
• 3) Last name (for example Smith) ;
• 4) E-Mail (compulsory) (for example adamsmith@crono.it);
• 5) At the end, click on Save.