Hi @NotHappy, I’m sorry to hear you had a bad experience. It sounds like you might have moved on, but here is some information about how to access your QuickFox notes without having to roll back to a previous version of Firefox. These files are saved as plain text in a profile folder.
To retrieve your bookmarks, go to Profiles - Where Firefox stores your bookmarks, passwords and other user data | Firefox Help for instructions on how to access your profile folder.
Once you have accessed your profile folder, look for the folder “qfn-backups”. Within that folder, there should be a subfolder for Backups. Your QuickFox notes should be saved in as plain text files within that folder.
Here’s a screenshot for reference:
