Import Data from older Version
My system broke during an update. Now I want to import my old Firefox userdata, but everytime I try to use the old data firefox just forces the creation of a new profile?
Is it completely impossible to recover data not created with the same firefox version?
Επιλεγμένη λύση
A profile needs to be registered in profiles.ini to make Firefox use a copied profile.
Note that some versions like Snap use a different location for profiles.
You can use the button on the "Help -> More Troubleshooting Information" (about:support) to go to the current Firefox profile folder or use the about:profiles page (Root directory).
- Help -> More Troubleshooting Information -> Profile Folder/Directory:
Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder - https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data
You can copy certain files with Firefox closed from one profile folder to the current profile folder to transfer personal data. Note that best is to avoid restoring a full profile folder and only restore important files that are safe to restore/transfer.
- bookmarks and history: places.sqlite
- favicons: favicons.sqlite
- bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
- cookies.sqlite for the Cookies
- formhistory.sqlite for saved autocomplete Form Data
- logins.json (encrypted logins) and key4.db (encryption key/primary password) for logins saved in the Password Manager
- cert9.db for certificates stored in the Certificate Manager
- persdict.dat for words added to the spell checker dictionary
- permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
- sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)
Όλες οι απαντήσεις (3)
If that's the case: Can I somehow find out with which version the data was created and just install that version of Firefox?
Επιλεγμένη λύση
A profile needs to be registered in profiles.ini to make Firefox use a copied profile.
Note that some versions like Snap use a different location for profiles.
You can use the button on the "Help -> More Troubleshooting Information" (about:support) to go to the current Firefox profile folder or use the about:profiles page (Root directory).
- Help -> More Troubleshooting Information -> Profile Folder/Directory:
Windows: Open Folder; Linux: Open Directory; Mac: Show in Finder - https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data
You can copy certain files with Firefox closed from one profile folder to the current profile folder to transfer personal data. Note that best is to avoid restoring a full profile folder and only restore important files that are safe to restore/transfer.
- bookmarks and history: places.sqlite
- favicons: favicons.sqlite
- bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
- cookies.sqlite for the Cookies
- formhistory.sqlite for saved autocomplete Form Data
- logins.json (encrypted logins) and key4.db (encryption key/primary password) for logins saved in the Password Manager
- cert9.db for certificates stored in the Certificate Manager
- persdict.dat for words added to the spell checker dictionary
- permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
- sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)
Okay, with that confirmation I tried again with a different process: New profile delete all files in there copy in the safe files select that (incomplete profile)
This works.
Previously when I saw these instruction I tried to insert the files into a complete profile. Which caused the same error as just using all files from the old profile.
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