Firefox Not Saving Prior Session Tabs
Until a few days ago, my Firefox would save all the tabs from the previous session. But now it does not, and I still have all the necessary settings enabled. I noticed that it will save the previous session IF I use the Firefox "EXIT" from the "File" menu. However if I use close the session using the upper right hand corner Windows close box (where the "X"), it does NOT save the tabs from the session. I also notice that when I close the Firefox window using the Windows close box, that Firefox (several) show still running under the Windows Task manager, but not when I use the "File:Exit". Running the current FIrefox version 127.0 (64-bit) under Windows 11.
Alle svar (1)
Using "Exit" in the file or in the "3-bar" Firefox menu button drop-down list is always the safest way to close Firefox and in your case it sounds that Firefox isn't closing properly if you click the close X. The latter only closes this window and if Firefox sees that this is the last window then a close down is initiated. You may still have another (hidden) window open or there might be a problem with "Clear history when Firefox closes" if you use this or there might be a problem with an extension.
Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.
- switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
- do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window