We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

Sync all windows and tabs

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

more options

I've read the articles that tell you how to sync between devices and I've done everything in them. Sync is on on both pc laptops, and I've pressed sync on both. I'm not sure what exactly has synced but I'm ultimately, trying to get my open windows with their tabs onto the new device. I'm sure there I a simple step I'm missing. Please help!

I've read the articles that tell you how to sync between devices and I've done everything in them. Sync is on on both pc laptops, and I've pressed sync on both. I'm not sure what exactly has synced but I'm ultimately, trying to get my open windows with their tabs onto the new device. I'm sure there I a simple step I'm missing. Please help!

所有回覆 (1)

more options

Alternatively, you can transfer sessionstore.jsonlz4 from the profile folder on the old device to the profile folder on the new device.


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 (Root directory).


  • 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)