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!

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

I occasionally delete tab with Resore previous session so I can't find it to restore now

  • 2 回覆
  • 1 有這個問題
  • 1 次檢視
  • 最近回覆由 caiua

more options

I started Firefox after crash and had a restore previous session tab. I ocassionally closed it and after Ctrl+Shift+T had that restore tab back with nothing to restore. How to recover it? Sasha

I started Firefox after crash and had a restore previous session tab. I ocassionally closed it and after Ctrl+Shift+T had that restore tab back with nothing to restore. How to recover it? Sasha

被選擇的解決方法

Do you still see "Restore Previous Session" in the History menu? You can tap the Alt key or press F10 to show the Menu Bar.


Backup the session files in the sessionstore-backups folder in the Firefox Profile Folder to make sure not to lose possible important session data. Do NOT close Firefox when Firefox is already/still running.

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

You will normally find these files in the sessionstore-backups folder:

previous.js (cleanBackup: copy of sessionstore.js from previous session that was loaded successfully)
recovery.js (latest version of the sessionstore written during runtime)
recovery.bak (previous version of the sessionstore written during runtime)
upgrade.js-<build_id> (backup created during an upgrade of Firefox)

You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.js to replace the current file (make a backup copy of the current sessionstore.js).

See also:

從原來的回覆中察看解決方案 👍 2

所有回覆 (2)

more options

選擇的解決方法

Do you still see "Restore Previous Session" in the History menu? You can tap the Alt key or press F10 to show the Menu Bar.


Backup the session files in the sessionstore-backups folder in the Firefox Profile Folder to make sure not to lose possible important session data. Do NOT close Firefox when Firefox is already/still running.

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

You will normally find these files in the sessionstore-backups folder:

previous.js (cleanBackup: copy of sessionstore.js from previous session that was loaded successfully)
recovery.js (latest version of the sessionstore written during runtime)
recovery.bak (previous version of the sessionstore written during runtime)
upgrade.js-<build_id> (backup created during an upgrade of Firefox)

You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.js to replace the current file (make a backup copy of the current sessionstore.js).

See also:

more options

I restored from the last upgrade backup file.

Thanx a lot.

Sasha