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I am planing on getting a new PC, and don't want to lose my bookmarks. Is there a way to save them to a file that I can then save to a flaash drive, to load on my new PC after I download Firefox on it?

I am planing on getting a new PC, and don't want to lose my bookmarks. Is there a way to save them to a file that I can then save to a flaash drive, to load on my new PC after I download Firefox on it?

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Click on Bookmarks -> Manage Bookmarks then Import and Backup and choose Backup which will save them to a .json file. Then, copy that file to the flash drive and Import that into the new Firefox Installation which will replace any existing bookmarks with those in the .json file.

Note: this does not save the favicons, just the links and folders. As you visit the sites the favicons will be saved again.

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There is also the option to Export Bookmarks to HTML. Importing that file doesn't overwrite any existing bookmarks. https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them

My preference is to use the procedure outlined in the article below. https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

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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.

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


  • 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)