What does the "restore previous session" menu option do?

It seems that it would be obvious, except this option is '''''always''''' greyed out.
I keep my history for the longest available period of time, so it shouldn't be erasing anything.

Is session restore enabled and working?
Does Firefox create a sessionstore.js in the Firefox Profile Folder?
*http://kb.mozillazine.org/sessionstore.js
See:
*http://kb.mozillazine.org/Session_Restore
*https://support.mozilla.org/kb/Session+Restore
If you use cleanup software like CCleaner then check the settings for the Firefox application.
Make sure that you do not use "Clear history when Firefox closes" to clear the "Browsing History".
*Tools > Options > Privacy > Firefox will: "Use custom settings for history" > [X] Clear history when Firefox closes > Settings
*https://support.mozilla.org/kb/Clear+Recent+History
Make sure that you do not run Firefox in permanent Private Browsing mode.
*https://support.mozilla.org/kb/Private+Browsing
To see all History and Cookie settings, choose:
*Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
*Deselect: [ ] "Always use private browsing mode"

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Does the restore previous session call get destroyed too with the new forget button in firefox

I have checked under startup to restore previous session ... Can it still if I use the new forget button since it states all tabs are closed ... so that would be last session to my thinking Rick Carter

I think there is a serious risk that your session history will be cleared, too. However, I haven't tested it yet. If you want to preserve a copy of your session history files while you experiment, you can back them up as follows:
Open your current Firefox settings (AKA Firefox profile) folder using either
* "3-bar" menu button > "?" button > Troubleshooting Information
* (menu bar) Help > Troubleshooting Information
* type or paste about:support in the address bar and press Enter
In the first table on the page, click the "Show Folder" button. This should launch a list of your settings files.
Look for a folder named '''sessionstore-backups''' and copy it in its entirely to a safe location such as your Documents folder.
You also should find a file named sessionstore.js which contains your current session windows and tabs. You could back that one up, too, but the recovery.js file in the sessionstore-backups folder should be identical or virtually identical (it may lag a little, but should be updated to be the same fairly quickly).

I don't like the retore previous option. if someone were to open it they could hack my facebook account or something else. how do i turn of the restore previous session option

I don't like the restore previous session option b/c it can lead to hacking into my computer.

Hello,
You could read this-
http://en.wikipedia.org/wiki/Firefox_4#Migration_issues
But if you really want to go to Firefox 3.6,
http://www.mozilla.com/en-US/firefox/all-older
and click the "Download" link for English Windows.

The restore previous session button is not working on Firefox on any of my three machines. How can I fix this?

I have a desktop at work, and a desktop and laptop at home and just recently the "restore previous session" button that comes up when I use the desktop icon to start a Firefox Web browser session does not work. It is there and I click it but nothing happens. I have Windows 7 on the two computers at home and thought that is what I had on this computer at work, but it may be Vista. It's not XP.

Had this trouble myself, just did some research and solved it!
Go to the '''Help''' menu, go to "'''Troubleshooting Information'''"
On the new window, click "'''Open Containing folder'''" next to ''Profile Directory'' (This opens the folder on your PC where Mozilla stores some settings, like a tab history)
In the new Windows Explorer window, Find the file "'''chromeappsstore.sqlite'''"
You'll want to close Firefox and then '''delete''' that file (don't worry, Firefox will create a new one, and you won't even lose the open tabs)
Start Firefox again and the button should work!
(For completeness's sake, the profile folder for windows7 is: C:\Users\Tiberion\AppData\Roaming\Mozilla\Firefox\Profiles\c6xu23fh.default\
where you replace Tiberion with your own username, and the random characters in the final folder will be different.)

Can I disable the restore previous session that appears every time I start Firefox?

I want to disable the Restore previous session button that appears every time I start Firefox

Consider using a separate password protected Operating System account, if possible, that may help.
You may use [[Private Browsing]] to prevent some of these problems occurring.
* see also [[Clear Recent History#w_how-do-i-clear-my-history]]_how-do-i-clear-my-history (Blue text --^-- is a clickable link)

How do I get the restore previous session

1st how do I get the history menu to have functioning "Restore previous session" and "Recently Closed Tabs" and "Recently Closed Windows" options? They are not usually in black but gray, not useable.
2nd, how do I get to articles which explain things like the history menu and how to use it without asking a question through this process?

Make sure that you do not run Firefox in permanent Private Browsing mode.
*https://support.mozilla.com/kb/Private+Browsing
*You enter Private Browsing mode if you select: Firefox > Preferences > Privacy > History: Firefox will: "Never Remember History"
*To see all History and Cookie settings, choose: Firefox > Preferences > Privacy, choose the setting Firefox will: Use custom settings for history
* Deselect: [ ] "Permanent Private Browsing mode"

The Restore Previous Session is always greyed out in my Firefox.

I have do not have any possibility to restore my previous session in my Firefox as the option under the History menu is always greyed out.
I am using Firefox 33.1.1 on OS X Yosemite (10.10.1).

Do a malware check with several malware scanning programs on the Windows computer.
Please scan with all programs because each program detects different malware.
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: http://windows.microsoft.com/en-us/windows/using-defender
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked
*https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

My FF crashes many a times and the last opened tabs are not restored. The Restore Previous Session under the history tab is greyed out and the the Session restore button on about:home is not there and im using FF 8.0.1

The tabs on about:home is not there instead there are Firefox advertisements and the restore button under history is greyed out>

Make sure that you do not run Firefox in permanent Private Browsing mode.
*https://support.mozilla.com/kb/Private+Browsing
To see all History and Cookie settings, choose:
*Tools > Options > Privacy, choose the setting Firefox will: Use custom settings for history
*Deselect: [ ] "Always use private browsing mode"
See also:
*http://kb.mozillazine.org/Session_Restore
*https://support.mozilla.com/kb/Session+Restore

The Restore previous session button is dead. Not doing anything

I have been able to use this before but this time, I click and nothing. Dead. Went to history and tried it there. Same result. No error message just a dead button

Hi trustdiva-
Did you try restarting the browser and trying it again? Have you upgraded to the latest version of Firefox? That would be the best place to start.
http://www.mozilla.org/en-US/firefox/new/

How can I add the Restore Previous Session button to a custom home page?

Just lost my full post, so, sorry for the abruptness.
Here's what I have:
<pre><nowiki><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html [
<!ENTITY % htmlDTD
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"DTD/xhtml1-strict.dtd">
%htmlDTD;
<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">
%globalDTD;
<!ENTITY % aboutHomeDTD SYSTEM "chrome://browser/locale/aboutHome.dtd">
%aboutHomeDTD;
<!ENTITY % browserDTD SYSTEM "chrome://browser/locale/browser.dtd" >
%browserDTD;
]>
<HTML>
<button class="launchButton" id="restorePreviousSession">&historyRestoreLastSession.label;</button>
</HTML></nowiki></pre>
Any help would be appreciated.
Thanks!

If someone can tell me this forum's tags for posting code, I'll gladly correct my original post so you can correctly see the code that I'm using. >.<

What does the restore settings do?, what does the restore settings do?

hello , one of my friends updated my iPod to the new iOS 7. It wasnt such a good idea. But im now restoring it. And im worried when i restore it something mite happen to my iPod touch 5th Gen. would the apple company be able to fix it if i take it in?

You might not be able to restore the iPod and you may have to get your friend to get iOS 6.1.3 back on the iPod
Apple will not hlep since y have a bootleg copy of iOS 7 on your iPod.

What does the "Copy error code files" option do in the build spec properties

I have the "Copy error code files" checked for my application build specification but when I run my EXE on a different computer and call the simple error handler, I don't get the custom error from my computer's
C:\Program Files(x86)\National Instruments\LabVIEW 2012\user.lib\errors\User-errors.txt file. Instead I get the "this error code is undefined" explaination.
I've also tried including that file in the "always included" section of the build spec but that didn't work either. Am I missing something?
CLD (2014)

Infinite,
Check out this link:
http://www.ni.com/white-paper/3209/en
Specifically this paragraph:
"When building an executable (EXE) or shared library (DLL) with the Application Builder, make sure to add the custom error file as a support file (under the Source Files tab). For an executable, the custom error file will be saved in the <executable destination directory>\user.lib\errors directory. For a shared library, the custom error file will be saved in the National Instruments\Shared\LabVIEW Run-Time\<version>\Errors directory. When distributing a shared library, make sure to install the custom error file in this directory."
James K.
National Instruments
Applications Engineer

Second Update - I'm unable to restore previous session as I do not have the option on homepae or history menu

Closed as duplicate. Please continue with the original question [/questions/992628] ~J99
Dear Sir/Madam,
I do hope you are able to assist me - I lodged a query earlier on today and got a response (I've put it below) really quickly and was much appreciated; however it didn't address my query (it seemed to just cover what I had already found on the website and not that I don't have the "Restore" buttons on either my Firefox homepage or on the pull down menu.
If you could let me know how to restore a previous session without either the "Restore" button on the homepage or the pull down Firefox menu, it would be appreciated (Also, I have not changed my settings)
My initial query & reply:
I hope you may be able to assist me - my computer turned off while I was in Firefox and in the past this has been no problem as I always got the page giving me the option to recover my previous open pages. Today however it opened on the Firefox home page. I have tried to recover pages as per help instructions on the Mozilla pages, but on the Firefox home page I don't have the recover previous session button, and when I go to history on the Firefox pull down menu the "Restore previous sessions, Recently Closed Tabs, Recently Closed Options" selections have been disabled.
Could you please let me know how I can recover my previous session?
Thanks and regards, Graeme
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cor-elTop 10 Contributor
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10649 solutions95825 answers
Posted
3/30/14 8:35 PM
You can check browser.sessionstore.* prefs including browser.sessionstore.resume_from_crash on the about:config page and reset browser.sessionstore prefs that are user set (bold) via the right-click context menu to the default value to make sure that Session Restore is enabled and working properly.
•http://kb.mozillazine.org/Session_Restore
•https://support.mozilla.org/kb/restore-previous-session
•http://kb.mozillazine.org/browser.sessionstore.resume_from_crash
Make sure that you do not run Firefox in permanent Private Browsing mode (Never remember history).
•https://support.mozilla.org/kb/Private+Browsing
•Tools > Options > Privacy > Firefox will: "Use custom settings for history"
•Deselect: [ ] "Always use private browsing mode"
In case you are using "Clear history when Firefox closes":
•do not clear the Browsing History
•Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
•https://support.mozilla.org/kb/Clear+Recent+History
Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.

Please continue with the original question [/questions/992628]
We are nearly all volunteers and fellow users. Please allow some time to elapse for a reply.

I'm unable to restore previous session as I do not have the option on homepae or history menu

I hope you may be able to assist me - my computer turned off while I was in Firefox and in the past this has been no problem as I always got the page giving me the option to recover my previous open pages. Today however it opened on the Firefox home page. I have tried to recover pages as per help instructions on the Mozilla pages, but on the Firefox home page I don't have the recover previous session button, and when I go to history on the Firefox pull down menu the "Restore previous sessions, Recently Closed Tabs, Recently Closed Options" selections have been disabled.
Could you please let me know how I can recover my previous session?
Thanks and regards, Graeme

You can check browser.sessionstore.* prefs including browser.sessionstore.resume_from_crash on the about:config page and reset browser.sessionstore prefs that are user set (bold) via the right-click context menu to the default value to make sure that Session Restore is enabled and working properly.
*http://kb.mozillazine.org/Session_Restore
*https://support.mozilla.org/kb/restore-previous-session
*http://kb.mozillazine.org/browser.sessionstore.resume_from_crash
Make sure that you do not run Firefox in permanent Private Browsing mode (Never remember history).
*https://support.mozilla.org/kb/Private+Browsing
*Tools > Options > Privacy > Firefox will: "Use custom settings for history"
*Deselect: [ ] "Always use private browsing mode"
In case you are using "Clear history when Firefox closes":
*do not clear the Browsing History
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/Clear+Recent+History
Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.

Firefox will not restore previous session in the same window?

Hello,
Every time I open Firefox and click the restore previous session button at the bottom nothing happens. That's the first part of the problem. Next, when I click on my history and click restore previous session, it does so but opens them all in a new window. It was only 3-4 days ago that this started happening. I would like to change what ever is causing this back to how it was as it is quite annoying when I have pinned tabs and I have to keep re-pinning them.
I am running the Developer version of Firefox.
Thank you.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
'''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu:
* Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
'''If Firefox is not running,''' you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
;[[Image:SafeMode-Fx35]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.

What does the "restore previous session" menu option do?

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