Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Need to Restore "Restore a Session" Page

  • 12 replies
  • 10 have this problem
  • 9 views
  • Last reply by ktx2skd

more options

In short, I was restoring a five-window-session through the "Restore Session" page, and for some reason only one window was restored. I'm trying to find a way to restore the other four windows, and the best thing I've managed to figure out is to search through the history of 4451 tabs to restore the 50 tabs I had open.

I would really really appreciate if someone would have any ideas on how to restore my missing windows...

In short, I was restoring a five-window-session through the "Restore Session" page, and for some reason only one window was restored. I'm trying to find a way to restore the other four windows, and the best thing I've managed to figure out is to search through the history of '''4451 '''tabs to restore the 50 tabs I had open. I would really really appreciate if someone would have any ideas on how to restore my missing windows...

All Replies (12)

more options

Modified by Donnie

more options

Nothing that I could make use of...

more options

I've found a file called "sessionstore.bak" which, using notepad, seems to contain a great deal of URLs, could it be containing my targeted tabs?

Problem is, it's 64 thousand characters long, so manually eliciting addresses from the file is infeasible.

more options

you can enter about:sessionrestore in the Location Bar (address bar) to force the Restore Session page to appear, after first restoring a backup file to restore the old session data. The session data is stored in sessionstore.js; this file can be restored (while Firefox is not running) from backups, including "sessionstore.bak". The file "sessionstore.bak" is created if you launch Firefox after a crash has occurred. It is a copy of the current sessionstore.js that gets lost otherwise, if you restart Firefox.

http://forums.mozillazine.org/viewtopic.php?p=4655235#p4655235

http://kb.mozillazine.org/Session_Restore

Modified by Donnie

more options

See previous reply

Modified by Donnie

more options

Not feeling good... the .js file doesn't contain anything to restore, and the .bak file restores only the single window that I already have, without the other four missing windows...

I don't think there are any deeper levels of backups than these two files, is there?

more options

Yeah, that's as deep as you can go for the most part.

Are you using "Show my windows and tabs from last time"?

Tools > Options > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"

Also you might give this a shot:

type in the address bar about:config & select i'll be careful i promise

type in the address bar: browser.sessionstore.max_tabs_undo & right click > modify > type 0 > OK

Restart Firefox & repeat for: browser.sessionstore.max_windows_undo

If you still don't have any luck then either you can read up further in the links I provided earlier or give up on finding and/or restoring the sessions you are looking for.

more options

The first option is already enabled in my case, the second and third options inside the CONFIG do not yield any results. I believe you were hoping that a ZERO would represent INFINITY, but it doesn't, it represents a disabling of the functionality.

more options

This will give you a great deal of information & support that isn't found in the standard Firefox support forums & for the most part relatively obscure.

1. Visit http://kb.mozillazine.org/Knowledge_Base

2. Locate Search on middle right side of page & type in "Session Restore" without quotes

3. Look through the applicable results that are returned.

Note: The results & information found using Mozillazine is for the more advanced user, and provides more in depth technical information. Judging from your responses I'm sure you will have no problem with the information.

more options

The search results detail the process of session storing and restoring, and describes what the values in about:config does. It's mostly preventive stuff though, doesn't add into recovering my stuff, but I believe you were aware of that.

I've installed two add-ons, "Nightly Tester Tools" and "Session Manager", to prevent this thing from happening again.

more options

Use "Firefox/File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit") to close Firefox with all open window if you are currently doing that by clicking the close X on the title bar. Using the close X only closes that window and thus only the last closed window gets restored.

more options

Been through that.