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Bookmarks sync

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  • 最后回复者为 cor-el

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Hi, I am unable to sync up the bookmarks from my previous mac to new one. I've synced the bookmarks on firefox account and am able to view them on my mobile when logged in.

I am however finding it impossible to sync on macbook even after signing in.

Hi, I am unable to sync up the bookmarks from my previous mac to new one. I've synced the bookmarks on firefox account and am able to view them on my mobile when logged in. I am however finding it impossible to sync on macbook even after signing in.

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You can open about:sync-log via the location bar to see whether recent Sync logs are available. You can upload the file to a website like Pastebin if you can't post the content of the file in a reply.


Note that if both devices are desktop devices you can transfer the file manually from one profile to another profile.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.


You can copy certain files with Firefox closed to the current profile folder to transfer or recover personal data. Note that best is to avoid copying a full profile folder.


  • bookmarks and history: places.sqlite
  • favicons: favicons.sqlite
  • bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
  • cookies.sqlite for the Cookies
  • formhistory.sqlite for saved autocomplete Form Data
  • logins.json (encrypted logins;32+) and key4.db (decryption key;58+) for Passwords saved in the Password Manager
    key3.db support ended in 73+; to use key3.db in 58-72, make sure to remove key4.db
  • cert9.db (58+) for (intermediate) certificates stored in the Certificate Manager
  • persdict.dat for words added to the spell checker dictionary
  • permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
  • sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)