This blog has earlier carried a post on how to Restore last session in Firefox. Firefox restores session automatically, which you had opened last time, in case of system crash or some unexpected errors. But this tip explained how you can do that every time you open firefox.
But after that post, I had received mixed reactions.
A few of my readers have appreciated that cool tip and found that very useful. But yesterday, I was contacted by a reader, who found this feature bothering him too much. He even wanted to get rid off the built-in feature of Firefox, where it prompts you to restore firefox session after it had closed due to some unexpected error or a system crash. So, how to do that.
How to get rid off Firefox Restore Session Dialog Box
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This is even easier. You just have to change the value of the browser.sessionstore.enabled flag. It’s easy.
- Type about:config in your Firefox Address bar.
- Select browser.sessionstore.enable
- Double click to change the setting to false
Simple. Now you will no longer get the Firefox Restore Session Dialog Box.












June 7th, 2008 at 1:47 am
Great trick. I always get irritated when this dialog box appear.
July 4th, 2008 at 8:05 am
The Restore Last Session feature is just one many that keeps me using Firefox as my default browser. Why anyone would want to turn the feature off, I cannot imagine. I read your article on using restore every time you open Firefox. That’s a useful tip for people using older versions of Firefox, but i guess it’s no longer necessary with FF 3, as version 3 gives you the option to save your tabs before closing Firefox. What will they think of next?
November 19th, 2008 at 12:04 am
Greetings.
Im hoping you can help me, i work on an iMac using firefox and this was somebody else’s computer before it was mine, so im not sure what settings were changed etc.
My problem is that I cant seem to get my firefox to “restore last session”. I’ve checked in the preferences, where I assumed there would be an option to allow/disallow – which I saw on a pc using firefox. I’ve now tried to use your system to disable the restore dialog box, hoping to reverse the situation. But alas, when i typed about:config there was no browser.sessionstore.enable
there was only browser.sessionhistory.max_entries and browser.sessionhistory.max_total_viewers.
Please please help. Forever i have been trying to enable the restore session dialog box, which doesnt even appear if my firefox is unexpectedly turned off or crashes etc. help
April 27th, 2009 at 10:02 pm
Thank you soooo much for telling me how to disable this!
For people who want to know WHY? For me it’s because I have Dial-up, and whenever this stupid box comes up due to my computer freezing and quitting firefox, i know that EVERYTHING will be SLOOWW!
All the cookies get deleted (im assuming)…. and therefore makes it slow. =(
But whenever I “Close all tabs” everything’s fine.
Anyway, thank you again!
August 16th, 2009 at 4:32 pm
When you do this what happens? Will FF simply not restore the old session and start a new one. Or will it start the new session automatically without prompting you with the dialog box.
I ask because I didn’t change any browser setting but, for some reason, firefox stopped prompting me with the dialog box. It just restores the session automatically.
I would like the dialog box back but I don’t want to disable the start new session feature altogether. I just want to be prompted with a choice.
October 25th, 2009 at 1:17 pm
Quote:”Why anyone would want to turn the feature off, I cannot imagine.”
Well let me clue in you in as to why Rick. I unknowingly went to a site and a virus started to download as well as about forty new windows full of spam, warez and porn opening up at once. I was able to very quickly go to Task Manager and end the whole thing by shutting of the Firefox process, but when the browser re-started guess where it brought me right back to?? Right back to the virus and the junk that nearly infected my computer! Does that help you to understand why many people would want this feature disabled? It’s an idiotic feature that the user has little or no control over.
January 4th, 2010 at 12:17 pm
This is all well and good – but my problem is that I actually *want* to enable the restore session prompt. Right now my firefox restores the session (through tools -> options) but it never prompts me – I want it to show the prompt, because although most of the time I want my session restored, sometimes it is one of the tabs that caused firefox to crash in the first place – so when it loads again it crashes again in an endless hair-pulling fit-inducing cycle.