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Restore previous session before upgrade

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  • Dernière réponse par Dunothar

Dunothar
Dunothar
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I'm lost, I tried countless of different "solutions" on the web to restore the previous session before I updated my old Firefox. When I update from version 54 to the newest one, all my open tabs are gone, or FF opens tabs from YEARS ago. I have a full backup of the original V54 instalation including the Mozilla folders in LocalLow, Local and Roaming. So swapping files is no problem.

I badly need all the open tabs again for productivity reasons alone. I hope someone knows how to restore the previous session before the upgrade.

I'm lost, I tried countless of different "solutions" on the web to restore the previous session before I updated my old Firefox. When I update from version 54 to the newest one, all my open tabs are gone, or FF opens tabs from YEARS ago. I have a full backup of the original V54 instalation including the Mozilla folders in LocalLow, Local and Roaming. So swapping files is no problem. I badly need all the open tabs again for productivity reasons alone. I hope someone knows how to restore the previous session before the upgrade.

Solution choisie

Hi

With that old Firefox 54 version you probably have a uncompressed sessionstore.js file for your session data. You will have to remove the existing sessionstore.jsonlz4 file and probably also rename/remove the sessionstore-backups folder to make Firefox fallback to sessionstore.js.

Note that best is to update manually from 54 to the current release via "Help -> About Firefox" to ensure that migration code to update files to a new scheme is run as you can lose more data like the logins.

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cor-el
cor-el
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Solution choisie

Hi

With that old Firefox 54 version you probably have a uncompressed sessionstore.js file for your session data. You will have to remove the existing sessionstore.jsonlz4 file and probably also rename/remove the sessionstore-backups folder to make Firefox fallback to sessionstore.js.

Note that best is to update manually from 54 to the current release via "Help -> About Firefox" to ensure that migration code to update files to a new scheme is run as you can lose more data like the logins.

Dunothar
Dunothar Auteur de la question
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Hot damn, that did it! Didn't know that the filetype changed. No wonder that it didn't work before.