Hello,

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

1. Go to Firefox > Help > Troubleshooting Information.
2. Click the "Reset Firefox" button.
3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Thank you.

You probably picked a dose of Malware.

Install, update, and run these programs in this order. They are listed in order of efficacy.
(Not all programs detect the same Malware, so you may need to run them all to solve your problem.)
These programs are all free for personal use, but some have limited functionality in the "free mode" - but those are features you really don't need to find and remove the problem that you have.
Note: If your Malware infection is bad enough and you are mis-directed to URL's other than what is posted, you may have to use a different PC to download these programs and use a USB stick to transfer them to the afflicted PC.

Malwarebytes' Anti-Malware - http://www.malwarebytes.org/mbam.php
SuperAntispyware - http://www.superantispyware.com/
AdAware - http://www.lavasoftusa.com/software/adaware/
Spybot Search & Destroy - http://www.safer-networking.org/en/index.html
Windows Defender: Home Page - http://windows.microsoft.com/en-US/wi.../windows-defender
Also, if you have a search engine re-direct problem, see this:
http://deletemalware.blogspot.com/2010/02/remove-google-redirect-virus.html

If these don't find it or can't clear it, post in one of these forums for specialized malware removal help:
http://www.spywarewarrior.com/index.php
http://forum.aumha.org/
http://www.spywareinfoforum.com/
http://bleepingcomputer.com

Thank you for trying. I already uninstalled and reinstalled Firefox, hoping that would work. I may be dealing with some sort of malware. But the popups always carry the "Mozilla Firefox" in the title bar, which made me think it was Firefox at fault. Rokahaszn

I have run several of the antimalware apps suggested, so far with nothing found. I will keep trying. Ultimately I may have to reinstall Windows 7 -- a horrible prospect that I hope I can avoid. I have several computers running Firefox but only one is doing this popup problem. This may be what should have alerted me that something outside of Firefox was responsible. Appreciate the suggestions.. Rokahaszn

The popups show Firefox on the title bar because Firefox is what they have opened up in. If you go to any website it says Firefox in the title bar, but it doesn't mean that website is run by Firefox. Did you reset firefox ? (not uninstall, reset)

Thanks Tylerdowner for the reply. I had already uninstalled/reinstalled Firefox since I was frankly unaware of a reset option. I was puzzled by a couple of things: the "programs and features" in Control Panel did not have Firefox in it so I had to manually shred its files to get rid of it. Now, the newly installed Firefox DOES appear in the programs list. Also puzzling is the fact that the newly installed Firefox already had my bookmarks (which I had backed up to a data drive) without me having to do a restore. Perhaps the program searches all the drives during installation for any backup files? I also ran a number of anti-malware programs in addition to scanning with my anti-virus/firewall program. Although none of them reported finding anything, It appears that one or more of these actions has, for the moment, stopped the popups. I hope it is a permanent solution and will prevent having to do an OS reinstall. By the way, the worst offender was a website with a hugely long URL that began with "bizcoaching.info". I wonder if this is a known malware item. I am watching to see if things stay improved. I am fortunate that this was my first such experience despite being a PC user since the 1970's. Sincerely, Rokahaszn

I followed the above advise and still experienced the problem. I fixed the pop-up problem by removing an add-on extension called Linksickle. It shows up as an add-on extension and as an installed program. Remove the extension from Firefox, then remove the program using Control Panel, Programs and Features. Once removed, reboot and the pop--up problems are gone. Linksickle gets installed as an application when downloading and installing some other program, usually a free program. I have not identified which one yet.

Thanks for the information. I am glad to report that following the various steps I described in my last post, the problem has not come back. But I have no idea which step did the trick. As for the Linksickle program and extension, I do not (thankfully) have it -- perhaps my shotgun approach eliminated it without my knowing. But I will keep it in mind and look for it if my problem happens again. Also, frequent creation of restore points has become my habit since Windows 7 rarely creates one on a regular basis like Win XP used to do. Rokahaszn

I was looking at your Firefox system details, but I did not see any add-block add-ons. are you using one? If not, go to the Firefox add-ons web page; https://addons.mozilla.org/en-US/firefox/

See also:

• http://kb.mozillazine.org/Prevent_websites_from_disabling_new_window_features