Firefox won't open. I am using ie8. what can i do to get it to run?

I have had firefox for over a year now and not had any problems. Today I can't get it to load up and run. I don't like ie8 and don't know what to do about this.

That error message -- "contains a date in the future" -- usually indicates a problem with the date, time, or time zone set in Windows. Could you double-check those?
By the way, why did you delete your old Firefox? Was there a particular problem?

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Thank you, thank you, thank you!
I uninstalled it, closed FF in Safe-Mode, reopened it and, ta da!
THANK YOU!

I downloaded version 4 this morning and now Firefox won't open. I use XP. It is going in taskmgr but not opening up.

I have tried everything to get the new 4.0 to open. I did the upgrade this morning and have been working on it all day, When I tried installing it several times FF was running so I closed it down via task mgr. I rebooted.. did everything I could think of. I really don't want to uninstall and lose all my info and settings, along with my add ons. I am defragging now, hoping that might help. I am using Windows XP.

When I downloaded new stupid version causing crash my system My Norton gone
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I downloaded the new Firefox but it constantly freezes, doing absolutely nothing, and I can't even close it from my Mac dock bar, I have to turn off my laptop using the power button as Firefox won't let me shut down. What can I do?

Hi
I recently downloaded the new Firefox (Firefox 4, I think - you can tell I'm very tech savvy!) and it constantly freezes, I can't do anything with it at all - I can't even close it from the icon in my Mac dock bar.
I have tried restarting my computer - though I have to turn it off by using the power button as as Firefox is open and totally unresponsive it won't let me shut down. About a minute after re-starting Firefox, restoring my tabs or starting afresh, it freezes again.
This is obviously very annoying and I'm not sure what I can do about it. Firefox is my preferred browser, and I'd really like to be able to use it again!

This is not a reply. I just want to elaborate on this problem.
My computer freezes occasionally when it is used after being sleep for a while. The spinning ball appears and everything is totally disabled. Nothing on the keyboard works.
The mouse moves, but does not work.
The only solution is to turn the power off and on (losing all data in open applications.)
I kept the System monitor running on the side to find out which program was running when the computer froze. The Monitor as well as all other applications froze, but the data showed:
Firefox 18.4%
Activity Monitor 0.9%
Firefox Plugin 0.2%
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Hello justinmendoza89, check if your [https://support.mozilla.org/en-US/kb/configure-firewalls-so-firefox-can-access-internet#os=win7&browser=fx16 firewall] or other security software(antivirus, antispyware) prevent firefox access .
[https://support.mozilla.org/en-US/kb/configure-windows-firewall-allow-firefox-access#os=win7&browser=fx16 Configure Windows Firewall to allow Firefox access to the Internet]
thank you

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I am having problems installing yahoo firefox 3.6.8 I have the download i can not seem to get it to run can some one please help in the install after the download?

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Tried to use Restore to return to pre-Firefox4 but now Firefox won't open and won't uninstall.

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Firefox won't open following update. Can't open Profile Mgr, even when using entire directory path in cmd line

I'm running Firefox on a Windows 7 machine. Firefox won't open following the latest update. I've read the help articles and it seems like I need to create a new profile because my settings have likely been corrupted. I'm unable to open Profile Mgr, even when using entire directory path in cmd line. I've tried the following commands in the command line:
firefox -p
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p
Nothing happens with either command.
I'm also running Norton Internet Security. I read a help article Re Virtual Browsing features possibly causing a problem. The article said to check the virtualization setting in the internet security software and to clear the virtual cache. I went thru all of the settings menus in Norton Internet Security version 21.6.0.32 and I didn't see anything that looked like 'virtualization" settings, so I assumed that this doesn't apply to me.
If you have any ideas, I'd sure appreaciate your expertise!!

''arcandl [[#question-1038482|said]]''
<blockquote>
I'm running Firefox on a Windows 7 machine. Firefox won't open following the latest update. I've read the help articles and it seems like I need to create a new profile because my settings have likely been corrupted. I'm unable to open Profile Mgr, even when using entire directory path in cmd line. I've tried the following commands in the command line:
firefox -p
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe" -p
Nothing happens with either command.
I'm also running Norton Internet Security. I read a help article Re Virtual Browsing features possibly causing a problem. The article said to check the virtualization setting in the internet security software and to clear the virtual cache. I went thru all of the settings menus in Norton Internet Security version 21.6.0.32 and I didn't see anything that looked like 'virtualization" settings, so I assumed that this doesn't apply to me.
If you have any ideas, I'd sure appreaciate your expertise!!
</blockquote>
''philipp [[#answer-670108|said]]''
<blockquote>
hello arcandl, when firefox isn't launching after you double-click on the shortcut this is sometimes also a sign of malware being active on a system.
you might want to try running a scan with some different other security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] and [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner] which are specialised in removing adware and browser hijackers.
[[Troubleshoot Firefox issues caused by malware]]
</blockquote>
Phillip - You're a genius!!! I ran malwarebytes and it resolved my problem. Thank you so much!!!

Mac won't open pages in browsers. Chrome and Firefox won't open any pages - Safari will only open a selected few.

I've had some strange browser issues, with Conduit being added to Chrome (which I've tried to remove via the browser settings). Chrome will open my Gmail account but no ther pages. Firefox won't open anything. Safari opens a few pages (this forum thankfully) but is very selective.
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Any help or guidance would be really, really appreciated.
I'm running the most recent version of Mavericks on 2012 iMac.

Hi,
First of all click Safari/Reset Safari, next click Safari/Preferences/Extensions and turn off extensions. The re-test
If the problem persists, try using safari in safe mode:
Use this link to see how to do this:
http://support.apple.com/kb/HT1564
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Have a look at this:
http://support.apple.com/kb/TS3230?viewlocale=en_US
I hope this helps

Firefox won't open. I am using ie8. what can i do to get it to run?

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