Firefox Support Forum

Hi!

I had two Firefox windows open at the same time, one with a lot of tabs open in it, and one with only a few open. I was going to close firefox in order to restart the computer, and closed the window with many tabs in it first, and then I closed the window with only a few tabs in it. The next time I started Firefox, only the window with a few tabs in it loaded, and not the other window in which I had the vast majority of all opened tabs. And I can't find any way to restore the tabs from the other window either. I have looked under the History menu, but I don't see any option to restore a previous session there, so I'm guessing that Firefox thinks that it already has restored the previous session when I opened it up again.

So, how can I restore the tabs I had in the other window, with a lot of tabs opened?

Since sometime in August 2021, I suspect after an update, occasionally when I launch Firefox it reports that it was unable to restore a previous session. I do not have the option to open previous sessions selected. On other occasions it starts properly with a blank page as it is configured to do.

Am I missing a setting?

It is not a major problem, I can simply enter a URL or search string in the address bar and it works properly for the rest of the session.

It is happening both on my Windows 8.1 Pro and Windows 10 Pro PCs running the 64-bit version of Firefox.

Any suggestions will be appreciated. Thank you.

I need to re-post this question as, although it has been asked previously, that session is now closed. It only started happening recently, but I'm not sure whether to blame the latest FireFox version, 96, or Windows 10, 21H2. I also run Avast and MalwareBytes AVs.

Two new problems: Most recent is

"firefox having trouble restoring your pages...start new session"   

And...for several months, anything I print from website (i.e credit card statement) is in HUGE type that doesn't even come close to fitting the page. This does not happen when I print from Edge, nor when printing documents (pdf, notepad or anything NOT from a website), so the problem has to be in Firefox.

The setting Restore previous session, on settings, general, is marked. History is kept, and the previous tabs are on the history menu (no restore session option is available, however).

Things I tried: Started on safe mode. Deleted startup cache. Refreshed the profile. Turned off add-ons.

So far, nothing works. When I close the browser with tabs open and I open it again, it starts with my homepage only.

Hi; When I close FF (V96.01) it does not seem to close properly and when restarted trys, usually unsuccesfully, to reopen previous tab. I have , open previous tabs and windows, unchecked in settings. I have tried both the X and exit. If I set, browser.sessionstore.resume_from_crash, to false in options it does not happen. as per https://support.mozilla.org/en-US/questions/1292610. But when I reset session restore to true the problem resumes. This makes me believe FF is not closing properly Win10 is up to date with all latest updates as is FF.

Is there a fix for this?

Ok, I was using Waterfox before, and then opened some pages I think that is pretty important, then closed the browser and borrowed the computer to the others. But the others have also used Waterfox I think, because I can‘t restore previous session，There are too many tabs, although there is history but it is almost impossible to retrieve by.these tabs are really important, please tell me if there is any rescue.Some contents are only shown in the case of restore previous session

I know that you normally can only reopen the last two closed windows. But is there any other solution or trick to reopen more than the last two? It would mean alot, as this window had more than 4000 important tabs in it.