Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

My bookmarks backup file is not matching JSON and couldn’t restore them

  • 5 ŋuɖoɖowo
  • 25 masɔmasɔ sia le wosi
  • 3 views
  • Nuɖoɖo mlɔetɔ cor-el

more options

4 days ago I backed up the bookmarks of my firefox explorer. After I upgraded to Windows 7 I tried to restore my important bookmarks. I got the message that the file type is not supported. It should be JSON, but it is something deferent. I don’t know why it been saved in deferent format. Is there any solution for this problem? I really need my bookmarks, it contains very important links to my work.

4 days ago I backed up the bookmarks of my firefox explorer. After I upgraded to Windows 7 I tried to restore my important bookmarks. I got the message that the file type is not supported. It should be JSON, but it is something deferent. I don’t know why it been saved in deferent format. Is there any solution for this problem? I really need my bookmarks, it contains very important links to my work.

Ŋuɖoɖo si wotia

Make sure that the file with the bookmarks has the correct file extension: .html for a HTML backup and .json for a JSON backup.

If you are not sure about the file type then you can open the file in Firefox via "File > Open File"
A JSON backup will show as one long text line without line breaks and a HTML backup as a web page with clickable links.

  • A JSON backup starts with: {"title":"","id":1,"dateAdded":
  • An HTML backup starts with: <!DOCTYPE NETSCAPE-Bookmark-file-1>
Xle ŋuɖoɖo sia le goya me 👍 5

All Replies (5)

more options

Ɖɔɖɔɖo si wotia

Make sure that the file with the bookmarks has the correct file extension: .html for a HTML backup and .json for a JSON backup.

If you are not sure about the file type then you can open the file in Firefox via "File > Open File"
A JSON backup will show as one long text line without line breaks and a HTML backup as a web page with clickable links.

  • A JSON backup starts with: {"title":"","id":1,"dateAdded":
  • An HTML backup starts with: <!DOCTYPE NETSCAPE-Bookmark-file-1>

cor-el trɔe

more options

Wow, it worked, Thank you very much. I appreciate that because of your help I got my bookmarks back.

more options

I got the long line, now what?

more options

If you have a JSON backup then you need to check the file extension and make sure that it is .json
You can see that more reliably via the right-click context menu in the Properties of the file.
You may have to place quotes around the name to make Windows apply the new file extension ("bookmarks-xxxx.json").

Then you should be able to restore the bookmarks in the Bookmarks Manager

Bookmarks > Organize Bookmarks > Import & Backup > Restore > Choose File