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Transfer tab to an other divice

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  • 1 有這個問題
  • 11 次檢視
  • 最近回覆由 cor-el

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Hello I want to send my open tabs from my old PC to my new PC. But when i do it whith Sync, only a part of them are open on the new divice. I have a lot of tabs, over 400, and only a hundred open. If I select the following tabs for the transfer, nothing is happening. Need help please.

Ps : sorry for my english, it's not my language

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You can use a portable storage device like a USB jump drive to transfer the open tabs. These tabs are stored in sessionstore.jsonlz4 in the profile folder.


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.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.


  • 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)

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