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Can't import old passwords after update.

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  • Ultima risposta di Maximum_Fluff

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So after a recent update on my firefox Dev Edition (42.0a2) it wiped my browser without my knowledge and transferred 'old' information to an "Old Firefox" folder on my desktop. I've gotten some of it back but my saved passwords won't transfer. I copy the files from the old folder into my directory but it doesn't show up in browser, nor do any of the passwords autocomplete.

Soluzione scelta

cor-el said

Did you check all those profile folders?

I did, yes.

It's my fault for trusting alpha software as much as I did, so I'm not really expecting to get my passwords back. I appreciate the help, but I think I can manage not having a few obscure passwords.

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The file you want is logins.json

Type about:preferences#security<enter> in the address bar. To the far right of Passwords, press the Saved Passwords button.

Does everything look okay?


In the Old Firefox folder, do you see these files? key3.db and signons.sqlite


Places Maintenance {web link} Allows to run Maintenance tasks on the database that drives Places, the bookmarks and history module behind Firefox.

Open the Add-ons Manager. Locate the add-on and press the Options button. Select All of the tests. Then press Execute on the bottom.

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No, nothing looks okay. See the attached image.

Somehow my firefox knows to log into youtube even though it isn't showing saved passwords. I have a new question: If I remove firefox and reinstall, can I replace the files with my files from the Old Firefox folder on my desktop? Would that work?

In the Old Firefox folder, I only see key3.db.

The following is the output from the Places Maintenance addon:

> Integrity check + The database is sane > Reindex + The database has been reindexed > Orphans expiration + Database cleaned up > Coherence check + The database is coherent > Vacuum Initial database size is 10240 KiB + The database has been vacuumed Final database size is 10240 KiB > Statistics Database size is 10240 KiB user_version is 30 page_size is 32768 cache_size is -2048 journal_mode is wal synchronous is 1 History can store a maximum of 104858 unique pages Table moz_places has 96 records Table moz_historyvisits has 0 records Table moz_inputhistory has 0 records Table moz_hosts has 43 records Table moz_bookmarks has 167 records Table moz_bookmarks_roots has 5 records Table moz_keywords has 0 records Table sqlite_sequence has 0 records Table moz_favicons has 40 records Table moz_anno_attributes has 6 records Table moz_annos has 83 records Table moz_items_annos has 114 records Table sqlite_stat1 has 11 records Index sqlite_autoindex_moz_inputhistory_1 Index sqlite_autoindex_moz_hosts_1 Index sqlite_autoindex_moz_bookmarks_roots_1 Index sqlite_autoindex_moz_keywords_1 Index sqlite_autoindex_moz_favicons_1 Index sqlite_autoindex_moz_anno_attributes_1 Index moz_places_faviconindex Index moz_places_hostindex Index moz_places_visitcount Index moz_places_frecencyindex Index moz_places_lastvisitdateindex Index moz_historyvisits_placedateindex Index moz_historyvisits_fromindex Index moz_historyvisits_dateindex Index moz_bookmarks_itemindex Index moz_bookmarks_parentindex Index moz_bookmarks_itemlastmodifiedindex Index moz_places_url_uniqueindex Index moz_places_guid_uniqueindex Index moz_bookmarks_guid_uniqueindex Index moz_keywords_placepostdata_uniqueindex Index moz_annos_placeattributeindex Index moz_items_annos_itemattributeindex

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You need two files to recover the passwords: logins.json and key3.db If you have an signons.sqlite file used in older Firefox versions then you can try to recover the passwords stored in that file. You still need the key3.db file for the encryption key.

You can use this button to go to the current Firefox profile folder:


If you have a copy of the signons.sqlite file and the matching key3.db file then you can try to force Firefox to migrate passwords saved in this file (you will lose passwords saved in logins.json). You can force Firefox to reimport the passwords from the signons.sqlite file and rebuild the logins.json file with these steps:

  • reset the signon.importedFromSqlite pref on the about:config page to the default value via the right-click context menu
  • delete the logins.json file in the Firefox profile folder with Firefox closed

When you restart Firefox then you should have the signon.importedFromSqlite pref with the value set to true and you should have the passwords imported in the Password Manager unless there may have been errors.

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I would love to do something you said but I'm missing files. I can't find logins.json anywhere or signons.sqlite. Whatever updated last night completely wiped everything on my browser and got rid of it.

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The only think left is to go to each web site, and use the "forgot password"

In the event that the passwords information is lost, you should record all information in a separate text file somewhere else on your hard drive, or written down. You can easily copy and paste if you need to do so. If you are concerned about someone else looking at that file, you can compress it using a password.


These can't get your data back, but will help in the future.

These add-ons can be a great help by backing up and restoring Firefox

FEBE (Firefox Environment Backup Extension) {web link} FEBE allows you to quickly and easily backup your Firefox extensions, history, passwords, and more. In fact, it goes beyond just backing up -- It will actually rebuild your saved files individually into installable .xpi files. It will also make backup of files that you choose.

OPIE {web link} Import/Export extension preferences

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Do you only have one profile in the "Old Firefox Data" folder on the desktop and in the default location for Firefox profiles?

  • %AppData%\Mozilla\Firefox\Profiles\<profile>\

"AppData" (XP: Application Data; Mac: ~/Library; Linux: ~/.mozilla) is a hidden folder.

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cor-el said

Do you only have one profile in the "Old Firefox Data" folder on the desktop and in the default location for Firefox profiles?
  • %AppData%\Mozilla\Firefox\Profiles\<profile>\
"AppData" (XP: Application Data; Mac: ~/Library; Linux: ~/.mozilla) is a hidden folder.

See the attached images for the profiles I have in the folders specified.

The one on the right is my folder for Firefox in %Appdata%

FredMcD said

The only think left is to go to each web site, and use the "forgot password" In the event that the passwords information is lost, you should record all information in a separate text file somewhere else on your hard drive, or written down. You can easily copy and paste if you need to do so. If you are concerned about someone else looking at that file, you can compress it using a password.

These can't get your data back, but will help in the future.

These add-ons can be a great help by backing up and restoring Firefox

FEBE (Firefox Environment Backup Extension) {web link} FEBE allows you to quickly and easily backup your Firefox extensions, history, passwords, and more. In fact, it goes beyond just backing up -- It will actually rebuild your saved files individually into installable .xpi files. It will also make backup of files that you choose.

OPIE {web link} Import/Export extension preferences

Thank you for the suggestion, I'll look into doing that.

Modificato da Maximum_Fluff il

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Did you check all those profile folders?

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Soluzione scelta

cor-el said

Did you check all those profile folders?

I did, yes.

It's my fault for trusting alpha software as much as I did, so I'm not really expecting to get my passwords back. I appreciate the help, but I think I can manage not having a few obscure passwords.