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Where is my user profile stored - on my computer or on Firefox computer? I need to re-install Firefox on a new computer. Will I lose my Folders (left side of screen), or are they safely stored with Firefox? Will they reappear when I install Firefox on the new computer?
Where is my user profile stored - on my computer or on Firefox computer? I need to re-install Firefox on a new computer. Will I lose my Folders (left side of screen), or are they safely stored with Firefox? Will they reappear when I install Firefox on the new computer?
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Hi
Best is to backup your current profile folder data yourself and not rely on Sync (Sync isn't meant to be used as a backup).
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 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 to the current profile folder to transfer or recover personal data. Note that best is to avoid copying a full profile folder.
- 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;32+) and key4.db (decryption key;58+) for Passwords saved in the Password Manager
key3.db support ended in 73+; to use key3.db in 58-72, make sure to remove key4.db - cert9.db (58+) for (intermediate) 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)