Before I upgraded my laptop’s hard drive to SSD, I couldn’t keep a lot of tabs open on Firefox because it takes up huge amount of memory and slows down my laptop to a crawl. So what I normally do is note down the interesting sites on a text file and will visit them again when I have the time. Now with SSD drive, everything became so fast and I no longer need to close the tabs. Every time I exit Firefox 3, I simply click on the Save and Quit button when I am prompted “Do you want Firefox to save your tabs for the next time it starts?” The next time I launch Firefox 3, all tabs are automatically opened.
Firefox 4 final has just been released and in fact I downloaded and installed it a day earlier because the setup installer is already on Mozilla’s server. Updating from Firefox 3 to Firefox 4 is very easy. All you need to do is run the Firefox 4 installation file (Firefox Setup 4.0.exe) and it will automatically upgrade as there is no need to uninstall Firefox 3 first. After upgrading, I immediately noticed that Firefox 4 no longer prompts to save the tabs on exit and it only warns me “You are about to close X tabs. Are you sure you want to continue?” There is only a checkbox to warn me when I attempt to close multiple tabs.

Fortunately the saving of tabs on quitting Firefox 4 hasn’t been removed and it has been disabled by default. There is no need to use add-on or extension for this feature. Not sure why the Firefox developers decided on this but here is how to enable saving of tabs when closing Firefox.
1. Type about:config at the address bar and hit enter.
2. Click the “I’ll be careful, I promise!” button
3. At the filter bar, type browser.showQuitWarning and hit enter.
4. You can either double click on it to change the value from false to true, or right click on it and select Toggle.

This change takes effect immediately without restarting Firefox. Now try closing Firefox 4 with multiple tabs opened and you’ll be prompted to save the tabs.


Thanks, I don’t know why Firefox disabled this option.
Thanks A LOT MAN .. :)
it works!!!!thanks a lot….
u r AWESOME
Thank youuuu!
It works just fine for me… Thanks a Ton.
Thanks! It’s working on Firefox 12.0 perfetctly.
It works! Bless u!!!!
I love techies with great workable tips! Merci bien!
Great. Thanks.
thank mate
Just what I was searching for! Thanxx!
Thanxxxxxxxxxx
Thanks for the tip, it worked perfectly on FF 8.0.1
it worked thank you :)
thank you so muchhhhh <#####
Thanks a lot
…just wanted to add to the comment I posted that I am using Firefox version 6 and this procedure still works …thanks again!
Thanks,
It worked perfectly just as you said it would …thanks for the clear pictured sample instructions …Perfect!
Thank you so much worked perfectly. Instructions were simple and straight forward!
Thanks very much it worked and your instructions were quite straight forward!
Thanks i get help from your article
Thank you soooooooo much!!!
THANK YOU SO MUCH!!!!! XOXOXOX
It works! Thank you!
Excellent tip. Now I am reconsidering to use Mozilla as my default browser. Congratulations!!!!!
Thank you
thanks i follow steps and it’s solved
Also works with Firefox 5. Thanks so much.
thanx man…strait forward help…
thnaks a loTTT…don’t understand why the Firefox team decided to throw it out…
Thank you a million! It works great with Firefox 5 as well!
very easy and very cool !!!
Thanxxx a bunch
thanks man i thought that there was no way to get the save buttom back unless u go back to number 3, i checked the options tab for number4 but couldn’t find a way to make it save my tabs! this was VERY EASY TO DO!! :) THANK YOU SO MUCH
wow, really thx. really lazy to bookmark all those links.
Youre the best!! Thank you so much
thanks mate. nice tutorial. easy and fast.
Brilliant, thanks a lot.
love it! thanks!
Thanks for sharing…
nice post :) thnx
thanks a lot, man
nice post, really helped. I must say thank you :D
thx a lot, man. you are my “idol of the day®”
Way easy – thx
thanks :)
Thanks, I was missing this feature very much!
thank you. It is helpful really.
Works great! Thanks :)
Thank you so much, it finally worked!
THANK YOU SO MUCH!!!! IT WORKED FOR ME!!!!! ;))))
Nice!! it worked great!! thanks Raymond.
Thanks a lot works great!!!
You’re a god!
Take care man, some day you’ll save one or many lives…
(Y)
Oh, It was very valuable thanks allot :))
thank you!!!
You are a lifesaver
Thanks you so much =)
I was afraid to fiddle with it after the pop-up warning but I trusted your advice, clicked on “I’ll be careful”, followed the step, and it worked GREAT! Thanks so much!
thanks a lot..:)
you are my savior man…thanx a lot…
thankx it really workx
Great tip…thanks!
oh thank you thank you thank you! I lost them all because I didn’t have time to search how to do this last night, but I didn’t want the internet on all night. I was not a happy camper – so thank you! you made my morning!
Works beautifully as you have shown in your instructions. The screen shots were a great help.
Thanks a bunch
Thank you SO much for this! Wish I’d read it before uninstalling and reinstalling Firefox…several times.
Lame that they disabled it by default, it’s like the best browser feature there is.
you made it so simple AND easy to understand with your screen shots. Well done! Thank you!
Have a great day, Raymond!
Oh gosh you made my day. Thanks a lot! <3
thank you , it’s important for me
thanks man, at first i looked at the official site and it was absolutely useless. then i found you site and solved the problem in 10 seconds
never posted on a forum before. this had prompted me to.
Thanks :) very easy to understand and works great :) thanks :)
I really needed this, thanks a lot ! :)
Excellent, it was wery simple and useful!
Thanks a lot!
Thanks!
Perfect. :) I really missed this feature since updating. I’m glad they didn’t totally get rid of it. Thanks for the walk-through!
Straightforward and simple. Thanks!
huzzzah!
strange decision by the developers to change the option, but thanks for the tutorial!
Thank you very much……
tbh silly idea to change this setting by mozilla, Its pretty obvious that people want to keep there tabs history
an own goal I think but thanks for this solution my friend
hey thanks a lot
Thank you very much!
Thanks a lot!
Excellent directions. Thank you very much.
thanks!!!
very nice, this is exactly what i was looking for. thank you, man.
Finally I can save my tabs !
Thnx .. it works
i am glad, too. very clear instructions!!!
Thanks! That was a very easy solution to a problem that I found totally frustrating! I was planning to switch back to the old Firefox already…
This was starting to annoy me!
Thanks very much, very helpful. Don’t know why the developers disabled this by default.
Thanks.
I was wondering where this had disappeared to!
I’m really glad I found your page. Very helpful and clearly presented. Thank you.
Thank you!!!! Such a great feature. Strange they got rid of this default.
Thank a lot !!
Thank you sir. This helped a lot!
tq very much…its work
Thank you so much!
Thanks. This is a feature I use a lot.
Thanks a lot !
Thanks a ton!!!
Thank you very much
Thank you.
Worked great – thanks
Thx alot.
perfect, exactly the help and information required to fix this problem without complicated comments and instruction…congrats…
wow thank you
it works perfectly, thanks! :D
thanx alot for this wonderful tip :)
Thank you so much!
Hey raymond thaaank yuuuu million times
Thanks a lot. you are a real hero..
Thanks a lot, very helpful!
excellent :) thanx
thx!! i was considering not updating because of this..now i can still be in love with firefox!! u da man, raymond!!!
Thanks a lot for the info. It worked for me.
Thanks Raymond,
What was the matter with the Firefox developers not making the save tabs option default??
thx man!!!
hi!thanx for the info! it’s very helpful since i wal almost frustrated with the ‘non-save tabs’.
Thank you, it was what I was looking for.
Thank you very much for sharing :D
Thanks a lot mate.. I also find it odd they would disable this by default, and have no way to toggle it thru the GUI.
It’s works. Thanks a lot
thanks lot
you rock! thanks much.
Worked a treat, thankyou!
Thank You! I have been looking for a solution on the net. Luckily I found your site. Good Job!
Thanks alot for this!
Dang!!! works just as explained, thanks a lot Raymond…
Nicely done! This is why I love Firefox.
thnks mate , u r superman !
Thanks for the tip Raymond :D.
thanks for the tip!
Works perfectly, thanks! I wonder why they removed this option…
Thanks Ray, really helpful tip.
Thank you very much. I was disappointed when I found out the same thing. Now my FF is Grrrrreat.
hi guys thanqs for helping me.
Thank you! This just saved my life =)
Thanx for that tip Raymond ;)
Thanks Raymond!..
Good one, just exploring FF 4 since last evening….
Thank you for the tip ;-)