Firefox occasionally crashes, after restarting it app tabs disappear. 8.0.1

From time to time, Firefox crashes.
When I open Firefox again, my app tabs disappear.
The problem is that I had more than 50 app tabs, and I really need them back, as I don't recall some sites' titles or addresses and I can't find them in history.
How can I restore or at least make sure that it doesnt' happen again?
If it is not restoreable, is it legal to change Firefox core files?

My problem is not necessarily when Firefox crashes, but when I have two windows open, one with my tabs and one plain one. If I close the one with my tabs first, and then the plain one, when i restart Firefox reloads only the plain window, and I cannot get my tabs back. This has happened to me numerous times and is highly annoying. I don't have 50 tabs like Mirac7, but it still frustrates me. Can't these be linked to my profile, instead of just the particular window I have open at the time?

Similar Messages

I just upgraded to Firefox 10 and all my pinned app tabs disappeared. Not sure how to get them back. This did not happened with any previous upgrades.

Was using Firefox 9 before upgrade.
Note that I was using Tab Utilities 1.1.2 which is now disabled because it is not compatible with Firefox 10 (but this utility does not really deal with app tabs anyway).

Please try this: In Firefox, '''Help''' ('''Alt''' + '''H''') > '''Troubleshooting Information''' > '''Open Containing Folder'''. This opens the [http://kb.mozillazine.org/Profile_folder Firefox Profile Folder]. Copy the '''sessionstore.js''' and '''sessionstore.bak''' files to another place, '''Exit''' Firefox, delete these two files in the profile folder and copy and rename the '''sessionstore.bak''' to '''sessionstore.js''' from the backup to this folder (profile folder). Start Firefox and please also check '''about:sessionrestore'''. Please note that this may not help if the .bak file's size is smaller than the .js.

I followed the instructions for making an APP TAB and succeeded BUT everytime I close Firefox, the app tab disappears upon re-opening. Can someone help please? I held the control button plus I clicked and selected the "Pin..as app tab".

As my question asks, I followed instructions for creating an APP TAB for my web mail account, and succeeded but each time I close and re-open Firefox, the app tab disappears. Can someone tell me what I am doing wrong please?

For better or worse, I think it's part of the design for the app tabs to be window specific. I know my first reply didn't solve your problem, but that was one way that worked for me to get the app tabs back when I restarted Firefox. Also I noticed the tag for this post is Firefox 4. I've only tried it with Firefox 5.
I agree with you that the way it's working isn't ideal. For the time being, I've stopped using the app tabs. Maybe they'll fix/improve it soon.

I set the prefferance to show tabs and windows from last session but every time i power down my firefox or my Mac all my app tabs and windows disapear. what's wrong with my settings.

I set my preferences to '''show all tabs and windows from last session''' and un-checked the box for '''don't load tabs until selected''' but every time I turn off fire fox and power down my Mac all my app tabs disappear.

Make sure that you do not use Clear Recent History to clear the Browsing History when you close Firefox.
*https://support.mozilla.com/kb/Clear+Recent+History

My iPhone 4 turns off (crashes) after accesing any apps, It work fine when plugged to charger. I tried all troubleshooting steps suggested by Apple but it doesn't work. What could be the problem and what are the solutions?

My iPhone 4 turns off (crashes) after accesing any apps, It work fine when plugged to charger (power supply). I tried all troubleshooting steps suggested by Apple but it doesn't work. I backed up my phone. I restored it several times. Even I re-installed iphone software. Also I restored it as a new iphone but doesn't work. What could be the problem and what are the availble solutions?

We can't know if there's a "fixture" because we can't examine your phone. But Apple can. Make a Genius Bar appointment and get your phone evaluated.

Firefox keeps crashing after the recent update. how can i fix this, its doing my head in.

firefox keeps crashing after the recent update. how can i fix this, its doing my head in.

Hello, Please make sure to get a fresh copy of Firefox from
http://www.mozilla.org/en-US/firefox/all
Have a nice day

Firefox 19 crashes after typing

Firefox 19 crashes after typing a second letter anywhere but the address bar.

Hi Bill
This looks more like an issue with Norton security software (Norton Confidential or Norton Identity Safe) because DLLs like coFFPlgn.dll or couictlr.dll are present in the crash reports.

Pinned app tab disappear, cookies has been delete when reboot computer.

All the tabs that was pin as app tabs disappear,
all cookies has been delete. Everything work fine when restart firefox4 but these happened when restart computers. All settings are default.
problem occur yesterday while I have been use for a month and everything worked fine. Reinstall application didn't solve the problem. And my system is Windows 7
Thank you.

-> Tap ALT key or press F10 to show the Menu Bar
-> go to Tools Menu -> Options -> Privacy -> History section -> '''Firefox will: select "Use Custom Settings for History"''' -> REMOVE Checkmark from '''"Permanent Private Browsing mode"''' -> place CHECKMARKS on:
1) Remember my Browsing History 2) Remember Download History 3) Remember Search History 4) Accept Cookies from sites -> select "Exceptions..." button -> Click "Remove All Sites" at the bottom of "Exception - Cookies" window
4a) Accept Third-party Cookies -> under "Keep Until" select "They Expire"
-> REMOVE CHECKMARK from CLEAR HISTORY WHEN FIREFOX CLOSES
-> Click OK on Options window
Check and tell if its working.

On Mac OS X snow leopard, when I quit firefox 4, all the app tabs I set up get deleted. Is that suppose to happen? on your website it says that when you close firefox and reload the browser the app tabs should be there on start up?

When I close the firefox browser but I do not quit the program entirely, the app tabs remain as I had originally set them up.
But when I fully quit firefox. All the app tabs I set up are gone and I have to set them up all over again every time.

Here's what happened in safe boot mode.
I click on apple logo > software update > see's that Super Drive 3.0 is checked > click install
I wait for the install to go through.
First pop up says " There was a problem installing this update" Quit all apps before installing bla bla bla... I noticed a sound when this pop up appeared. It's the sound of when you restart the macbok. There is another popup behind this saying that software update has been sucessfully installed.
So what I did first was click "quit" on the popup saying "There was a problem installing this update".
then I clicked "ok" where it said that the software installation update was successfully installed.
I get another pop up which is the Software Update window. I let it look for any updates and it then says that my software is up to date. I noticed that Super Drive 3.0 is listed and cannot be checked [x]. There's a Check mark with a green circle around it.
I quit the software update window and click on apple logo > software update and let it do its thing. Next thing you know, It says that Super Drive 3.0 needs to be updated. I also checked the SERIAL ATA and still shows rev. CP06.
I just recently installed this mac os X so there is no "important" data on this laptop. I don't have any money for OS Lion or Mavrick nor meet the system req to run it. 2gb to 4gb is expensive for a ddr2 800 200 pin ram

How do I stop Firefox from crashing everytime I close a tab?

Ever since I downloaded Firefox 4.0, it crashes anytime I close a tab or a window.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* On Windows you can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac you can open Firefox 4.0+ in Safe Mode by holding the '''option''' key while starting Firefox.
* On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
[[Image:FirefoxSafeMode|width=520]]
''Once you get the pop-up, just select "'Start in Safe Mode"''
[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the 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 other users who have the same problem.''
Thank you.

When I start Firefox 4.0 my previously set App Tabs don't re-open

Using Firefox 4.0 under Win XP Home SP3 I do "Pin as App Tab" to several tabs. When I restart Firefox those tabs do not open, either normally or as App Tabs. What do I need to do to make them re-open automatically on re-start?

You're welcome! I will try to get these details added to the documentation for App Tabs.
 Please click on the '''Solved''' button to mark this question as solved for the benefit of other users. Thanks.

Why App Tab disappears after cleaning the manhine with CCleaner?

I had App Tabs like yahoo, gmail, facebook etc. But, after cleaning my machine with CCleaner, I found, all of them has gone. So, is there any solution present for this? CCleaner is a good software. Many users uses this to clean their machine. So, what is the use to App Tab if we keep loosing it after doing a lot of work to set them in the browser? Although, I love firefox. Thank you.

Hi TonyE, Thanks for your solution. But the technique used in the previous version of firefox to remember tabs was great. It was independent from session. we used the drag and drop application to make tabs there. By d way, great work. I appreciate The Firefox Team.

Firefox automatically crashes after 4 hours of use and only when a textbox is being used - problem now daily and getting worse

This has been going on for a few weeks and started of it's own accord. I have not recently installed any new plugins or scripts, and my PC is protected by two antivirus products and so my system (WinXP) is malware free.
I can browse firefox for up to 4 hours, and then it crashes. No matter what sites I am using, what I am doing or even if I'm at the PC... so long as there's a text box on the page then firefox will crash if the 4 hour time limit expires. I can be just about to save an hours worth of photo captions and lose all that work due to the crash, or can be in the middle of a background download but it'll still crash... daily.
I thought this was a plugin issue, as I have disabled all plugins for javascript handling, flashgot, etc, but still it crashes. (previously on startup Firefox would hang for 5 to 10 minutes and the system would "bing" at me if I tried to click on the firefox window... eventually a 'non responsive script' window would appear relating to a flashgot script). The crash used to go whereby suddenly the page would freeze for a few seconds, followed by a minute or two of safe working, then 2 minutes of freeze and 30 seconds of safe working, with the ratio of freeze-tim:working time working in 20 seconds increments until firefox crashed... now though there is no warning, the page freezes and then it's gone. I have updated firefox several times and still the problem persists. On a previous computer, Firefox degraded to the point where it froze for 4 minutes on any page with a Flash application... now on this computer it has degraded by itself to the point where it crashes after 4 hours of use.
I'm presently using Internet Explorer to type this question because firefox crashed again and I'm not going to sit waiting for it to reload just to get a few numbers from an information screen... therefore further info like crash ID's etc will be update in due time....

Cool, I'll try using the wall adaptor just as soon as I get a convertor for it to convert it to our socket type. It's nice to hear that someone else has experienced the same issue.
I am not using it as a phone in Australia, just the ipod and wifi.

I understand the design change to the whole "save as app" tab, but I feel that Save and Quit feature from the previous version of Firefox is much better than this "app tab" feature. Is there anyway for me to have this back?

Restore previous session button available on my Firefox homepage is great, but what I really want is the Save and Quit feature. I have always felt that its one of the best features of Firefox, second only to search address bar directly leading me to the actual page. I read some threads about this, and found the answers very unconvincing. One of the suggested ones was "Pin as app tab" . No, I don't want to pin every tab that I want to visit say, thrice as an app. Second suggestion was, click on the obvious button on the homepage to restore the tabs(this took me quite a while to actually see). Why this change in design? This is identical to Chrome's but its very inferior to what Firefox already had. Is there anyway, without downgrading of course, I can get that feature back?

Okay, I found the answer myself. Going to about:config and setting browser.showQuitWarning to true, restored that option and brought it back. Thanks to anyone who is about to post. If this is false by default, it has got to change.
-- Sorcus

When Firefox 4 is launched, the 3 App Tabs I have are duplicated as regular tabs.

Running Firefox 4.0..1 on Windows 7. When Firefox is launched, the 3 App Tabs I have defined are opened just fine. They are also opened as regular tabs. Why the duplication? What have I done wrong?

It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
Delete the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
* Help > Troubleshooting Information > Profile Directory: Open Containing Folder
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/sessionstore.js
If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well. 
Deleting sessionstore.js will cause App Tabs and Tab Groups to get lost, so you will have to create them again (make a note).
See:
* http://kb.mozillazine.org/Session_Restore

Firefox occasionally crashes, after restarting it app tabs disappear. 8.0.1

Similar Messages

Maybe you are looking for