This morning my Firefox prompted for an update and adding a mobile phone sync... in the process ALL bookmarks were lost. HELP.
I tried fixes per suggestions, but there is no back-up to back up. All bookmarks are just plain gone. Can anyone help
Did you try to reboot the computer?
Do you have automatically created compressed .jsonlz4 JSON backups in the bookmarkbackups folder available?
- Bookmarks -> Show All Bookmarks -> Import & Backup -> Restore
You can check for problems with the places.sqlite and favicons.sqlite files in the Firefox profile folder.
- use "Verify Integrity" button on the "Help -> Troubleshooting Information" (about:support) page
In case 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
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.
- Help -> Troubleshooting Information -> Profile Directory:
Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder