Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

Firefox wont let me restore my missing bookmarks

more options

My bookmarks disappeared two days after installing new version. When I try to restore from an older backup it says "unable to process the backup file." When I try to restore bookmarks from a newer version it says "Unsupported file type."

My bookmarks disappeared two days after installing new version. When I try to restore from an older backup it says "unable to process the backup file." When I try to restore bookmarks from a newer version it says "Unsupported file type."

All Replies (3)

more options
more options

Your System Details shows;

Mac OS X 10.10
Firefox 31.0

Why are you using such an old browser?

more options

Firefox 32+ switched from regular .json files to compressed .jsonlz4 files. That could be why Firefox 31 can't handle the newer format.

If you had trouble finding the current installer, see:

https://www.mozilla.org/firefox/all/

Or to use the internal updater, see:

Update Firefox to the latest release