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How to convert json bookmarkfiles and import into new firefox browser?

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Long story short...I lost my hard drive, reinstalled windows....I never used a firefox login on this laptop. I do have a backup of all my data/appfiles --- actually i cloned the failed drive. So I have this directory in my backups:

D:\Users\USER\AppData\Roaming\Mozilla\Firefox\Profiles\810aqnu7.default-release-1636153011215\bookmarkbackups. There are a bunch of JSON versions of bookmarkfiles there stored....how can i get my bookmarks back with these files?

where is the "current bookmark files" stored? which directory?

thanks in advance.

Long story short...I lost my hard drive, reinstalled windows....I never used a firefox login on this laptop. I do have a backup of all my data/appfiles --- actually i cloned the failed drive. So I have this directory in my backups: D:\Users\USER\AppData\Roaming\Mozilla\Firefox\Profiles\810aqnu7.default-release-1636153011215\bookmarkbackups. There are a bunch of JSON versions of bookmarkfiles there stored....how can i get my bookmarks back with these files? where is the "current bookmark files" stored? which directory? thanks in advance.

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You can restore a compressed jsonlz4 bookmarks backup in the Bookmarks Manager (Library).

This will replace all current bookmarks with the ones in the backup, so you may have to create an HTML backup.

You can look at this tool to inspect a compressed jsonlz4 bookmarks backup and possibly generate an HTML backup.