When i open firefox, before start show window [JavaScrip Application] title that have this text: TypeError: urlbar is null

when i open firefox, before start show window [JavaScrip Application] title that have this text:>>TypeError: urlbar is null

Try to boot the computer in [http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-7 Windows Safe Mode with network support] (press F8 on the boot screen) open firefox and see if that happens again.

Similar Messages

When I open firefox before connecting (via 56k modem) or if I leave a previous section open, disconnect and then reconnect, firfox does not work, it remains offline, even though internet is connected. I have to close firefox and reopen

When I open firefox before connecting (via 56k modem) or if I leave a previous section open, disconnect and then reconnect, firfox does not work, it remains offline, even though internet is connected. I have to close firefox and reopen

Thanks for the reply. I never get the option to "Restore Previous History" from History. I don't even have the box checked that asks to delete the history when Firefox closes. I don't know what's wrong, no matter what, I always lose everything. I have the box marked "Show my windows and tabs from last time" for when I open Firefox, but it never shows that, just my homepage. Also, when I check my History, it only shows the pages that I opened since I started Firefox, nothing from before. Even if I were to open up 10 pages now, close Firefox, and open it, the history would only show the homepage that opened this time, not any of the 10 pages that I opened 5 minutes ago.

Why, when I open Firefox 9.01 do I get a message that I do not have the latest version when Help-About Firefox says I do?

There are/were three problems:
'''1.''' Why, when I open Firefox 9.01 do I get a message that I do not have the latest version when '''Help>About''' Firefox says I do?
'''2.''' Also, with the 8.xx version, I was unable to open in a new window with a right click until I upgraded to 9.01. (Old problem now, but I am curious.)
'''3.''' When I tried to uninstall the older version the uninstaller told me that I had to close the open version, but it was closed according to my taskbar. I also have this problem with Thunderbird.

1. You are using the latest version which is Firefox 9.0.1
From your description it sounds as if you may still have the old http://www.google.com/firefox Firefox start page hosted by Google as your homepage. This old default homepage is no longer used as '''about:home''' has been in use since Firefox 4.0
Either ignore the message, change homepage to '''about:home''', change it to another page or leave blank.
http://support.mozilla.org/en-US/kb/How+to+set+the+home+page

When I open firefox, it starts not on my homepage, but on a search page I've never willingly downloaded, and have uninstalled from my computer. Why?

Today, I've had quite some trouble with my computer. I think it was attacked by something sneaky, but I managed to stop it and fix everything. Everything but this one thing.
When I open the firefox browser, it does not automatically go to my homepage, despite having followed every instruction for this to happen. Instead, it opens in a search engine called "awesomehp" which I have, previously to this, never heard of, and never installed. WHen I click the "home"-button, it goes to my actual homepage, and everything is ok.
I have tried to uninstall this...."awesomehp" search engine, but it STILL shows up automatically when I open FireFox. Why? And this is even after I've reset FireFox to its default settings once.
Why does this happen, and what can I do to fix it?

Every now and then, you should run these programs 
Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

Why when I open Firefox always starts to collapse and stop working period between the minute and a half minutes and then completed open the home page This problem harass all Internet surfers recently and I do not know why?

something about system breakdown only when firefox open after that firefox start work very well
Nothing about the collapse of the system when you open Firefox, and then start all start Firefox to work very well with the knowledge that the device works with Intel Core Duo 2 and 4 GB of Ram I do not know what to do with Firefox, even works well in the first time when the works I always surf with Firefox and I do all the important updates, which you recommend

something about system breakdown only when firefox open after that firefox start work very well
Nothing about the collapse of the system when you open Firefox, and then start all start Firefox to work very well with the knowledge that the device works with Intel Core Duo 2 and 4 GB of Ram I do not know what to do with Firefox, even works well in the first time when the works I always surf with Firefox and I do all the important updates, which you recommend

When I open firefox my screen fills up and I don't have the top part with the tool bar or tabs. How do I fix this. It does not do this with explorer

When I open firefox the whole screen fills with the firefox page but no tabs or toolbar at the top of the screen. It does not do this if I use Internet Explorer. I can google say, my email of facebook and I can get there but there is no way to get out of this page, no "red" X to close the sight.

"F11" toggles Full Screen mode on/off
see
* Firefox and other Browser Keyboard Shortcuts (Comparison Table) http://www.mvps.org/dmcritchie/firefox/keyboard.htm
Not to be confused with Maximize/Restore button in upper right corner which leaves your toolbars intact.
Just noticed your mention of missing the red "X" (red background), are you also missing the vertical scrollbar on the right side.
* Resizing oversize window - MozillaZine Knowledge Base http://kb.mozillazine.org/Resizing_oversize_window
If you are referring to not being able to close a tab, you will not see the "X" on a tab if it is the last tab, in fact you may not even see the tab bar, that depends on your options and on configuration options for how the close tab is to appear.
Check your '''[http://kb.mozillazine.org/About:config_entries about:config]''' options
:The following options are found within these two articles
* About:config entries - MozillaZine Knowledge Base http://kb.mozillazine.org/About:config_entries
* Tabs configuration, extracted from About:config entries - MozillaZine Knowledge Base http://dmcritchie.mvps.org/firefox/tabs_config.htm
'''browser.abs.autoHide''' Boolean
:Behavior for the tab bar when only one tab exists
:True (default): Hide the tab bar
:False: Always show the tab bar
:Note: In Firefox, this can be changed via "Tools → Options → Tabs → Always show the tab bar (Firefox 2 and above) or Tools → Options → Tabs → Hide the tab bar when only one web site is open (Firefox 1.5).
'''browser.tabs.closeButtons''' Integer (Firefox 2.0)
:This preference controls how close buttons can be displayed on tabs.
:0: Display a close button on the active tab only
:1: (default) Display a close button on each tab
:2: Don't display any close buttons
:3: Display a single close button at the end of the tab bar (Firefox 1.x behavior)
 Please mark "Solved" one answer that will best help others with a similar problem -- hope this was it. But please also leave a comment because of the several possibilities and we would like to know which problem you actually experienced.

Why does my Bookmark Toolbar appear blank when I open Firefox 8.x but is filled after unclicking that toolbar in View and reclicking?

When I open Firefox, the Bookmark toolbar is there but a solid gray. I can restore the icons by clicking View, Toolbars, Bookmar to unselect the Bookmark toolbar, and then repeat the process to select the Bookmark toolbar. This is an annoyance repeated every time I open Firefox. How do I get out of this loop and just have the Toolbar appear populated with icons automatically?

Have you done any customization to the Bookmarks Toolbar? Like adding Spaces or a Flexible Space to the Bookmarks Toolbar. 
Does an overflow chevron >> appear on the right-side of the Bookmarks Toolbar?
Try the Firefox SafeMode to see how it works there. 
''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+ SafeMode by holding the '''Shft''' key when you use the Firefox desktop or Start menu shortcut.
* Or use the Help menu item, click on '''Restart with Add-ons Disabled...''' while Firefox is running. 
''Don't select anything right now, just use "Continue in SafeMode."''
''To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shft key) to open it again.''
'''''If it is good in the Firefox SafeMode''''', your problem is probably caused by an extension, and you need to figure out which one. 
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes
''When you figure out what is causing that, please let us know. It might help other user's who have that problem.''

When I open FireFox the 'Security Password' window opens TWICE both must be typed in to open FireFox, Why?

When I load FireFox the Master Security Password window opens 2 times. Both must be filled in for FireFox to access passwords. Why and how do I correct this?

Are you using Firefox Sync or reopen pages that you've saved a password for?
*https://support.mozilla.org/kb/what-firefox-sync
Try one of these:
* StartupMaster: https://addons.mozilla.org/firefox/addon/startupmaster/
* Master Password+: https://addons.mozilla.org/firefox/addon/master-password/

When I open Firefox (latest version) in Windows 7, I get multiple windows, none of which open up my previous session.

I have a new HP laptop, with which I had no problem at first, but now, every time I try to log on to Firefox ( default) at least 4 and up to 14 Firefox windows open, none of which contain my previous session despite my home page being "open with previous tabs". I can't find any way to stop this happening.

It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.
Delete the files sessionstore.js [2] and sessionstore.bak in the Firefox Profile Folder.
* Help > Troubleshooting Information > Profile Directory: Open Containing Folder
* http://kb.mozillazine.org/Profile_folder_-_Firefox
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. 
Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).
See also:
* [1] http://kb.mozillazine.org/Session_Restore
* [2] http://kb.mozillazine.org/sessionstore.js

When I open firefox and start browsing, I get error message Firefox has encountered and need to close, we are sorry for inconvinience, if u r middle of something, the information/data might be lost

Firefox has encountered and need to close, we are sorry for inconvinience, if u r middle of something, the information/data might be lost
then two tabs are located, first is send a report and second is dont send
I am getting this error twice in one minute
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.4; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Bonjour
J'ai désinstallé Firefox et réinstallé de nouveau
Le problème est le même
Merci de votre aide
Jak

When I open firefox, a pop up window asks "do you want to allow the following program to make changes to this computer? How can I get rid of this pop-up window ?

Every time I open the browser, a pop-up window asks "Do you want the following program to make changes to this computer?"
It is unnecessary and annoying to have to click "yes" each time.
How can I get this pop-up window to stop?

Thanks for the help I'll keep the info just in case - but I got so frustrated that I just deleted the program and then re downloaded the current version now everything works fine.

When I open Firefox, I get a window telling me "[Javascript Application] Exc in ev handl: TypeError: this.oRoot.enable is not a function". When I click ok, Firefox opens normally

All details in question. I can provide a copy of an image of the window if needed

Tried disabling all add-ins individually, problem still there. But when I restart via help menu / restart with add-ons disabled, the problem goes away. I do have mcafee installed but the site advisor has been disabled for ages.

My home page will not load when I open Firefox but features show up in column on left and bookmarks are there.

My home page opens with features in a column on the left and bookmarks are available but the center section (features) is blank. Home page with features appeared at first opening of FF, then would not open normally after opening a feature but would not open normally when going back to home page. No not at all.

This can be a problem with the file places.sqlite that stores the bookmarks and the history.
* http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox

When I open Firefox from my desktop I get a pop-up stating "This connection is untrusted", and "We can't confirm that login is secure". Am I to ignore these warnings at my own peril?

When I click on the Firefox icon on my desktop the browser appears but a pop-up also appears with the above statements. It also suggests that "this may be phoney and someone may be trying to impersonate the site and you shouldn't continue." What do I do?

Hi Philipp,
here is the test .... search for "google support" then git "Google Help" I captured all 3 screens . Image attached .
Thanks
nd

When I close Firefox why do I get an "Application Error" that states: The instruction at "0x0523f7fc" referenced memory at "0x0000002c". The memory could not be "read"?

It's a box that asks me to click "OK." I do and it closes. This just started, but it happens each time I close Firefox.

It's a box that asks me to click "OK." I do and it closes. This just started, but it happens each time I close Firefox.

When i open firefox, before start show window [JavaScrip Application] title that have this text: TypeError: urlbar is null

Similar Messages

Maybe you are looking for