Settings - cannot check box to open previous windows and tabs.
cannot check box to open previous windows and tabs.
Wšykne wótegrona (2)
Have you selected "Always use private browsing mode" on the Privacy page in Settings or changed anything in about:config? If you don't get an answer, try troubleshooting mode.
https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems https://support.mozilla.org/en-US/kb/troubleshoot-issues-related-to-add-ons
Also make sure you do not use "Clear history when Firefox closes" to clear the "Browsing History". See Settings may be incorrect: