Simply copying ''key3.db'' and ''signons.sqlite'' into the profile folder won't work in Firefox 32.0. It stores login information in ''logins.json''. ''signons.sqlite'' is normally only read once when upgrading from a previous version, to import your existing login information. So, you need to also tell Firefox to try importing your login information again: # Type ''about:config'' into the address bar and press Enter. # To bypass the warning, press the big button labeled "I'll be careful, I promise!". # In the search box, paste ''signon.importedFromSqlite'' # In the search results, right-click ''signon.importedFromSqlite'' and choose '''Reset'''. # Type ''about:support'' into the address bar and press Enter. # Click the Show Folder button. A Windows Explorer window with your profile folder opens. # Click the ≡ Menu Button and click the Power Symbol in the lower right to exit Firefox. # Back in the Windows Explorer window, delete the ''logins.json'' file. # Copy the ''key3.db'' and ''signons.sqlite'' files from your backup into the profile folder. # Restart Firefox. Check if your logins are visible under Options → Security → Saved Passwords.