Unable to open a second firefox window if i have already a firefox window running

I'm unable to open a new firefox window if i have one already running. Previously this action was allowed. so i would like to ask if this action has been disallowed after the update ?

You have a corrupted Firefox 3.6.12 user agent (Firefox/2.0.0.14):
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/2.0.0.14
See * http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default
Check the general.useragent prefs on the about:config page.
You can open the about:config page via the location bar, just like you open a website.
Filter: general.useragent
If any general.useragent prefs are bold (user set) then right-click that pref and choose Reset.
Are you starting Firefox with the -no-remote command line switch?
Make sure that you do not start Firefox with the -no-remote switch or have set the environment variable MOZ_NO_REMOTE=1 (Control Panel > System > Advanced > Environment variables).
http://kb.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile

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I am unable to open certain pages on sites. I have to switch over to IE because the new Firefox update is not accomodated on their websites! When will this be fixed... sites included Ameritrade, FAFSA, and others...

Question
I am unable to open certain pages on sites. I have to switch over to IE because the new Firefox update is not accomodated on their websites! When will this be fixed... sites included Ameritrade, FAFSA, and others...

First and foremost, you should update to 3.6.17 because the version you're running at the moment is insecure and exposes your system to attack. Update via '''Help '''| '''Check For Updates'''.
That may even fix the problem since several minor bugs were also fixed in later versions.
Similarly, after updating, go to the [http://www.mozilla.com/en-US/plugincheck/ Plugins Check] page and update those which are necessary.
If the problem persists, try running Firefox in [[Safe Mode]]. If it functions properly in that configuration, then one of your add-ons is the culprit.
I didn't experience a problem myself accessing any of those sites you mentioned. See screenshot.

Unable to open pdf files on my IMac I have downloaded

Unable to open PDF Files on my IMac I have installed the latest Adobe Reader still no joy when I try to open any PDF File from a site I just get an empty black
page.

Is it only ones you have downloaded? What about for example the ones that came with your iMac - you didn't give a model but mine has a folder "User Guides and Information" that has a number of pdfs. Spotlight should find it for you.

Since update cannot open sky e-mail , opens then crashes immediately ,everything else works , have re-installed firefox twice , cleared cache / cookies etc... still the same

Question
since update cannot open sky e-mail , opens then crashes immediately ,everything else works , have re-installed firefox twice , cleared cache / cookies etc... still the same

https://crash-stats.mozilla.com/report/index/62a72234-f550-41f8-8f31-e34972120112 
https://bugzilla.mozilla.org/show_bug.cgi?id=700176 
Looks like that type of crash is related to Trusteer Rapport.
http://www.trusteer.com/support/

Am trying to downloand IE Tab for IMac, have already downloaded firefox, says is not compatible with current platform, can you adivse?

I am trying to download IE Tab for IMac, I have already downloaded Firefox, and when I try to download IE Tab, it tells me it is not compatible with my current platform, can you please advise?
Thanks so much!

Where are you seeing that IE Tab for IMac even exists?
The IE Tab extension for Windows versions of Firefox doesn't ''add'' IE to Firefox, it uses the version of IE that is already installed. IE isn't made for Mac any longer, so there's no way that a version of IE Tab can be made for Mac platforms.

How to create an extension for firefox in android,i have already an android application and i want lunch it from mobile firefox, how to get started please?

I want create an extension for fennec (mobile firefox) in android, i have already an android application and i want lunch it from mobile firefox, by tapping a button that i will add to the user interface of mobile firefox web browser, is this this possible?

see: https://wiki.mozilla.org/Mobile/Fennec/Extensions
https://developer.mozilla.org/en/Building_an_Extension
https://wiki.mozilla.org/Mobile/Fennec/Extensions/BestPractices
good luck
thank you
Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Unable to open a second Window

I recently upgraded my Firewall to Zone Alarm Pro and added their Anti-virus as well. Since I've done that I can't open a second Firefox Window. Additional tabs open fine, and any other browser will open a second Window without a problem, but I prefer to use Firefox. I tried reinstalling Firefox 3.6.8 but that didn't solve it.

Try to disable the ZoneAlarm Toolbar extension.
Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

I m unable to open my lotus Domino mailbox using this new version of firefox,

When i try to open my official mailbox from my personal laptop, i m unable to open that in the new version of firefox . its IBM lotus domino server. below is the error message i m getting with a pop-up window :
"A Domino Web Access script error has occurred that might result in missing data within the current page. If your current operation did not complete, click OK, and then refresh your browser display.
Show details
Below is the server site addr i try to connect :https://inchnm01.tcs.com/mail/mail3/318779.nsf/iNotes/Mail/?OpenDocument

Which version of Office, 2004, 2008 or 2011
and
MS Office is not available from the App Store, so where did you get it?

I have windows 7 and have been using Firefox for the last several months and now I can' open it up for some reason.

I've been using firefox as my principle browser for quite some time. I normally just click on it once and it opens to the home page with google search in the middle of the page. I downloaded some e-mail attachment about a job and that's when it seemed to act up. I ran a scan on my computer and it says there is no problems but I still can't open up Firefox home page by clicking on the fox/world icon.

'''Try the Firefox Safe Mode''' to see how it works there. The Safe Mode is a troubleshooting mode, which disables most add-ons.''
''(If you're not using it, switch to the Default theme.)''
* You can open the Firefox 4.0+ Safe Mode by holding the '''Shift''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Don't select anything right now, just use "'Start in Safe Mode"''
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shift key) to open it again.''
'''''If it is good in the Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one.
Please follow the [[Troubleshooting extensions and themes]] article for that.
''When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.''

Why won't firefox allow me to have more than one window open at a time?

Firefox will only open one window regardless of how I attempt to open another window. How is the remedied?
I updated to firefox 7.0 after this occurred but has not helped.
I have looked through the options and cannot find any options that will help.

Similar questions have been posted several times during the past year, but no one has posted back to confirm the cause of the problem. The most likely culprit is an add-on (or, if you have multiple displays, the window opening off-screen).
First, I recommend backing up your Firefox settings in case something goes wrong. See [https://support.mozilla.com/en-US/kb/Backing+up+your+information Backing up your information]. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)
Next, check out this article:
[https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes Troubleshooting extensions and themes | Troubleshooting | Firefox Help]
Any luck?

Firefox suddenly won't open, have run virus scan, reinstalled, and tried to run firefox.exe-p, none have worked and firefox.exe-p won't open either. Win 7

At the top of the Firefox window, click on the Firefox button (File menu in Windows XP) and then click ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select QuitAt the top of the Firefox window, click on the File menu and select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit.
2. Press + R (click the Windows Start button and select Run... on Windows XP).
3. In the Run dialog box, type in:
firefox.exe -p
4. Click OK.
Acts the same as trying to open FireFox. Also when reinstalling it said FF was open. The only way to close it was to restart the computer. However when Shut Down button is pushed, FF is not listed as a program that is open.

Hi geneo3711, sorry you are having problems.
There are many possible reasons for problems lets look first at the ones I consider most likely:
In ordinary circumstances Firefox only runs one instance using one profile. If you have Firefox not shutting down properly that may prevent you from starting Fifrefox until you have found and killed the process. (Also look for plugincontainer which may also exist).
If you are certain Firefox is not already running then the problem is often that a Firewall or security related program is blocking Firefox. This is especially likely if you have installed new security software ,a new version of Firefox, or have tried to restore the computer.
See also
* [[Configure firewalls so that Firefox can access the Internet]]
*[["Firefox is already running but is not responding" error message - How to fix it]]
*[[Firefox won't start - find solutions]]
*[[Troubleshoot Firefox issues using Safe Mode]]
** much more detail including command line details http://kb.mozillazine.org/Safe_Mode http://kb.mozillazine.org/Command_line_arguments
Note on the command line options you may need to
*enclose most of the line within quotes
* include a space before the -p or -safe-mode

My operating system windows xp : downloaded firefox 4 but dont have the new firefox menu button?

Im running windows xp sp3
just upgraded to firefox 4
browser doesn't show new firefox menu button ?

The new interface is only default on Windows Vista and Windows 7. To get it on Windows XP you need to hide the menu bar. To do that in the View menu select Toolbars, then click on the "Menu Bar" entry.
If you need access to the menus you can press either Alt or F10 to temporarily display them.

TS1702 Help ... iBooks ... Unable to open an view my books that i have purchased in the catalogue .ibooks always opening in the section books purchased etc. when I press the button library it is not changing to the catalogue

iBooks opens but not on the catalogue page whereby I can open my books ab read way I have purchased ?

Hi Nitish,
Thanks for your reply. Infact I only coded the event handler. In the first line, I am reading the entity from the collection wrapper of the context node. If it is bound, only then I can set it in EDIT mode.
ob_entity ?= me->typed_context->notes->collection_wrapper->get_current( ).
IF ob_entity IS BOUND.
Sets the view in EDIT mode
Now, ob_entity is null if there is initially no data in the notes section of the confirmed account. However, if notes is not empty, then, ob_entity is bound and I can set the view to edit mode. This is the issue.
Regards,
Naren

On certain sites, I don't get the option to "view" only to "save". Also, Firefox says that I have to close Firefox that is already running when this is not true. I then have to restart my computer

When I've closed Firefox and want to re-open it in the same session, I get a message that I have to close an open Firefox window before being able to use Firefox again. There is nothing to close.
== This happened ==
A few times a week
== many months ago

See http://kb.mozillazine.org/Firefox_hangs and [[Firefox hangs]] (Hang at exit

Firefox will not start, have to reinstall firefox

only happened to me after i switch to comcast and use norton anti virus.

Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
Please report back to see if this helped you!

Unable to open a second firefox window if i have already a firefox window running

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