This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

lost bookmarks

  • 1 reply
  • 1 has this problem
  • 11 views
  • Last reply by FredMcD

more options

I upgraded my iMac from Mohave to Monterey and lost all my bookmarks in Firefox. I had hundreds. I'd like to get them back. Maybe from a saved backup file on my backup harddrive. I've tried all the suggestions posted online. It looks like the file that holds the bookmarks was updated to the most recent. I don't know where to find the old bookmarks file. Can anyone help?

I upgraded my iMac from Mohave to Monterey and lost all my bookmarks in Firefox. I had hundreds. I'd like to get them back. Maybe from a saved backup file on my backup harddrive. I've tried all the suggestions posted online. It looks like the file that holds the bookmarks was updated to the most recent. I don't know where to find the old bookmarks file. Can anyone help?

All Replies (1)

more options

What about the rest of your profile? Settings, bookmarks, history, passwords . . . .


Restore Bookmark Backups

Firefox automatically makes backups of the bookmarks. These are stored in the bookmarkbackups folder.

Open the Bookmarks Manager; Press the Alt or F10 key to bring up the toolbar, and select Bookmarks. Hot key is <Control> (Mac=<Command>) <Shift> B. Firefox 84+ <Control> (Mac=<Command>) <Shift> O.

Once the window is open, at the top of the page, press the button labeled Import and Backup. Select Restore. From the list, pick the file you want and click it.

The backups are stored in a jsonlz4 file named something like this; bookmarks-2016-06-29_1424_enD1GTH ya0JmicnYWg4V4g==.jsonlz4

In this example; 2016-06-29 = date created 1424 = number of entries.

https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them

https://support.mozilla.org/en-US/kb/recover-lost-or-missing-bookmarks

https://support.mozilla.org/kb/forum-response-recover-bookmarks-after-update