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Firefox 4 opens TOO many empty windows on starting the browser!

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New Contributor

Firefox 4 opens TOO many empty windows on starting the browser!

Every time I open up Firefox 4 a BUNCH of empty windows load up with my LAST 'remembered' tabs. SO I have ONE window with all my tabs intact.. and then like 13 EMPTY windows and this happens EVERY time I start up firefox. I have tried everything from using the about:config and changing that one browser tab setting to 'true'... I took out the mimeTypes.rdf from the Application Basics section I even tried UNINSTALLING and REINSTALLING firefox.. I'm SO tired of all these empty windows does ANYONE know what could cause this? I also ran a 'malware' check and I have NONE. I have honestly done EVERYTHING to try to fix this... just wondering if anyone ELSE is experiencing this and if anyone else has ANY other advice! I'm about ready to switch to Google Chrome.. I don't want to! So ANY help/advice would be appreciated! Thank you!!

<removed bold formatting - edited by moderator>

19 REPLIES
Site Moderator

Re: Firefox 4 opens TOO many empty windows on starting the browser!

It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Profile Folder

Delete sessionstore.js and sessionstore.bak in the Profile Folder

  • Help > Troubleshooting Information > Profile Directory: Open Containing Folder

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.

You will have to redo App Tabs and Tab Groups after deleting sessionstore.js.

See:

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

Hi cor-el, I think I've seen your answer before on OTHER questions like this one that I asked... The STRANGEST thing is.. yesterday it opened up PERFECTLY with NO problems.. then TODAY.. when I opened it.. it actually for SOME reason remembered this 'adobe' page I was on that I KNOW I closed and OTHER windows again.. and it just seems like a MESS now any time I reopen.. like... EACH time will be a SURPRISE as to what I will SEE in the tabs or extra empty windows...

BEFORE I attempt this... (I didn't WANT to when I saw you post this before) but NOW I think I MAY have NO CHOICE.. but BEFORE I try this...

Can you PLEASE tell me what you mean by... 'REDO App Tabs and Tab Groups'?? I don't understand what that means? How DO I do that?? I'm sorry I checked the link under there and I FEEL totally confused! If you have a 'short cut' way of explaining this I would LOVE to know and appreciate your time and help.. if not, I understand as I'm SURE it's a bit of explaining...

I just DO NOT understand why this is happening in the FIRST place? HOW did it START and what the HECK did I DO to make this happen? And why is it, that it seems like NOT too many people HAVE this issue?

Anyways, thanks for your time.. and ANYONE ELSE if you have annnnnnnnnnnnnny IDEAS please let me know or if anyone has heard ANYTHING else about this ANNOYING situation!

Sincerely,

FRUSTRATED Firefox USER (Shivonne)  Smiley Sad

Site Moderator

Re: Firefox 4 opens TOO many empty windows on starting the browser!

It helped others with this problem, so you can try to rename the file or move it to another folder to see if that helps.


If you have created App tabs (right-click a Tab on the tab bar : Pin as App Tab) or created Tab Groups then you lose these because that data is stored in the file sessionstore.js and is lost if you delete that file.

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

Thanks cor-el. I will try this at some point... thanks for the links too! I understand the app tab now Smiley Happy

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

Well, I finally tried it! It didn't work though.. I took out the sessionstore.bak and sessionstore.js (which there were about 6 extras of those!) Took them ALL out and STILL am having this problem... I guess I'm going to try to go on LIVE CHAT maybe... hopefully someone can help me or might know of another solution. Thanks for your help BTW. I appreciate the efforts!

Sincerely, Shivonne **Frustrated, grr Smiley Sad

Site Moderator

Re: Firefox 4 opens TOO many empty windows on starting the browser!

If you had multiple sessionstore-##.js files then that can indicate a problem with security software that lock files in the Firefox Profile Folder and prevent Firefox from updating the main sessionstore.js file.

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

Do you mean like antivirus software? The ONLY thing I use is Microsoft Security Essentials... the FREE program.. there's nothing else I have running in the background? I mean I use Win and Glare utilities but only a few times a month. So... do I need to some how 'allow' some program that is NOT allowing me to update the main sessionstore.js file? You know at THIS point to just avoid the windows... I guess what if I change the options to 'start' a new session EACH time.. I wonder if THAT will stop all those windows.. then I will just will REMEMBER what tabs I had open and reopen every time I guess.. Gosh I'm surprised I'm not hearing too many others with this problem. Thanks for your help again.

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

I don't think that the workarounds are really satisfactory. Having to lose your old browser sessions after a restart is not very good (ironic understatement). Neither is having to shut multiple blank open windows with a two title bars each. I wonder if this is because I'm running Windows XP? If so, I'm seriously considering moving to another browser which is really a pain as I used to *love* Firefox until 4 came out. I'll probably go to IE instead.

New Contributor

Re: Firefox 4 opens TOO many empty windows on starting the browser!

@garthzares --I am just soo DISAPPOINTED with FF4! I have Windows Vista.. and I think it JUST takes too MUCH CPU and I am either FREEZING or hanging... I use to be able to have 50 tabs open at ONCE with NO problem and NOW I can hardly open 15 w/o freezing issues.. also for some reason 'LINKY' doesn't work as well anymore... sometimes my mouse opens the SAME url/link twice or even 3X! I WISH I could go back to the previous version of Firefox... I myself am SERIOUSLY considering google Chrome at this point... uuge Smiley Sad