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How do I restore my old settings?

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My bookmark json files are corrupt. Can I restore my settings using my places.sqlite file? If so, how? Thanks.

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Did you confirm that the backup are corrupt as a corrupt places.sqlite can cause similar error messages ?

You can use this tool to check the files.

If you use Sync then best is to disconnect Sync temporarily during troubleshooting.

This can be caused by a problem with the places.sqlite and favicons.sqlite databases in the Firefox profile folder.

  • use "Verify Integrity" button on the "Help -> Troubleshooting Information" (about:support) page

If errors are reported with "Verify Integrity", close and restart Firefox and retry.

If "Verify Integrity" cannot repair places.sqlite, rename/remove all places.sqlite and favicons.sqlite files in the Firefox profile folder. Firefox will rebuild places.sqlite and restore the bookmarks from a recent JSON backup in the bookmarkbackups folder.

  • keep a backup copy of places.sqlite in case a new places.sqlite database has to be created

See also:

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.


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Thanks for replying. I tried Jefferson Schur's program on my bookmark backup file, which is how I know it's corrupt. Will it work on my sqlite files? (I don't have another bookmark backup.) Verify Integrity turned up no red flags.


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