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Firefox keeps restoring previous session even thought that preference is not checked

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FireFox V64.0, 64 bit keeps restoring previous session with previous content even after proper shutdown of both FireFox and PC. Preference settings are NOT checked for Restore. I have tried checking them, restarting, unchecking them and restarting, but no change.

Isisombululo esikhethiwe

Hello Briankarens,

Would you please type in the address bar about:support (press Enter) => Profile Folder => Open Folder Then check if you have a user.js file in your Firefox profile folder that sets the value of the browser.sessionstore.resume_session_once preference to "true" (default value is "false") (you'll have to close Firefox first)

See this article : https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Scroll down to the section "User.js file overriding Firefox settings "

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All Replies (6)

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Isisombululo Esikhethiwe

Hello Briankarens,

Would you please type in the address bar about:support (press Enter) => Profile Folder => Open Folder Then check if you have a user.js file in your Firefox profile folder that sets the value of the browser.sessionstore.resume_session_once preference to "true" (default value is "false") (you'll have to close Firefox first)

See this article : https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Scroll down to the section "User.js file overriding Firefox settings "

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Thanks for solution. Wouldn't it make sense if FireFox preferences listing INCLUDED any settings from user.js?

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Briankarens said

Thanks for solution. Wouldn't it make sense if FireFox preferences listing INCLUDED any settings from user.js?

Maybe you'd like to submit feedback, using this link :

https://qsurvey.mozilla.com/s3/FirefoxInput/

Worth a try ....

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Hi, I am having this problem too. Firefox 74.0 on openSUSE Leap 42.3 - KDE Plasma 5.8.7. In the preferences I have "Restore previous session" unchecked. in about:config I have:

 browser.sessionstore.resume_from_crash        false
 browser.sessionstore.max_resumed_crashes  0

I log out of KDE without closing firefox. At the next login all my tabs and windows are restored. I would like to start with a new session with the option of restoring the old session using the menu. I want to keep my history and the undo close tab/window functionality. Is there a way to do this ?

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Oh and I don't have a user.js

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leishman said

Oh and I don't have a user.js

Hello leishman,

Would you be so kind as to start a new thread, using this link :

https://support.mozilla.org/en-US/questions/new/desktop/other

(you'll have to scroll down to the bottom of the page)

Your problem may be different from the OPs.