After updating Firefox, I am no longer able to open the browser

After installing the latest update of firefox, I can no longer open the browser and use it. I have tried uninstalling it and reinstalling, I have tried using an earlier version of firefox, nothing works. How can I fix this?

Do you have any styles installed for those pages?
Try the Stylish forum if the problem is caused by Stylish.
* http://forum.userstyles.org
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode

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After updating Firefox yesterday I have been unable to access the internet. I have tried the Norton 360 fix several times, but it still doesn't work. How can I get Firefox working again?

After updating Firefox yesterday I have been unable to access the internet. I have tried the Norton 360 fix several times, but it still doesn't work.

After updating Firefox yesterday I have been unable to access the internet. I have tried the Norton 360 fix several times, but it still doesn't work.

Imac is no longer able to open the Configuration file

Hi ,
I have an imac ( ilamp) 20' connected to ADSL, via Netopia Router which is connected to the Airport extreme connected to imac, for the PB Aluminum Tiger 10.4.5. we both can connect. PB can print via imac/printer.
The imac is no longer able to open the Configuration file, when i enter the pswd which is correct, i get the message "The Airport Admin. Utility was unable to read the configuration of the selected base station an error occurred while reading the configuration "
My Beau updated Airport to V5.7, this is the first time since the update I've tried to access the conf. file for the imac which i have done numerous times prior.
I have a new base station Ip address 254.128.0 in Airport Utility Admin, on the imac which does not reflect my network settings anywhere, and is not what it use to be, i think, it was one value different than the PB.Base station IP. I do not know how it changed neither one of us changed it.
I tried using the Airport Setup assistant (imac), I received this message:
"Appropriate Airport hardware was bot found on this computer,if you recently
Installed, an Airport card,please shut down your computer$ make sure the card is properly istalled."
The imac does not have a card, nor do i think it needs one.
I would like to be able to at least open the configuration file.
Thank you for reading my post.
Eme
Power PC G4 (3.3) iMac♥ Flat Panel 10.3.9 & 15 Alum.PowerBook Tiger Mac OS X (10.4.4)

Hi Kes, a star for the company !
I made an error on my first post I have a Netopia modem, Airport router.
And so it remains, i guess that there must be an easy answer somewhere
that I am missing that I/we should read, some direction to that would be helpful, and I would be very appreciative.
As I said the password had been set, and it is not an issue of that being forgotten, i wondered if it was changed back to "public" tried, not it.
particular because everytime the imac wakes one of the folders on ( no one else in office just me and boyfriend and it is his work folder he has a copy on the PB.( the folder on desk top has been clicked on, the one with sensitve info, i have backed the folder up and secure trashed it, just in case some security issue hacking has taken place, thats closing the barn door after the fact.
Good luck,w/ this Q.
regards Eme
Power PC G4 (3.3) iMac ♥ Flat Panel 10.3.9 & 15 Alum.PowerBook Tiger Mac OS X (10.4.5)

Since upgrading to FaceTime 1.0.5 (170) I am no longer able to open the application on my MacBook Pro. I am using operation system OSX 10.6.8 and being presented with error message "You have been disconnected - an internal error occurred.

No longer able to open the application on my MacBook Pro since upgrading to FaceTime 1.0.5 (170). The operating system is OSX 10.6.8.

My problem opening FaceTime after the upgrade is now solved. I didn't pay enough attention when prompted to decide where to store the application upgrade and as a consequence the computer created another "Applications" folder within the existing one. When I subsequently clicked on the icon on the dock to open the application the computer couldn't find the software.
Makerfield2

I received a pdf from someone with an updated reader. I am not able to open the file or download the update. ERROR 1932 ????

I received a pdf from someone with an updated reader. I am not able to open the file or download the update. ERROR 1932 ????

ERROR 1935 SORRY PLEASE HELP I CANNOT OPEN ANY PDF'S ON MY COMPUTER NOW????????????????

Just updated to the newest version of Firefox and it keeps crashing when I open the browser. I tried opening it with add-ons disabled and it still keeps crashing. Crash ID: bp-03b36d11-304e-4f80-ab9e-79b7f2111223

I just updated to the newest version of firefox for my mac laptop. It keeps crashing when I open the browser and does so even in safe mode. Laptop is about two years old. Might it be an issue with the OS? I have not updated to Leopard yet.

It seems that the problem is related to fonts.
(1) How were you updating your operating system ?
If you use *_Software Update_*, hurry up, download and apply the combo updater available from :
http://support.apple.com/kb/DL1361
but CAUTION, this update introduce a serious problem with some fonts. At this time the only workaround available is to reinstall 10.6 tyhen apply the combo updater 10.6.6 available from :
http://support.apple.com/kb/dl1349
(2) if you didn't used *_Software Update_*, run a maintenance tool like the free MAINTENANCE available from :
http://www.titanium.free.fr/index_us.html
Apply it to clear caches files, mainly those dedicated to fonts.
It would be also a good idea to check the health of your fonts with FontBook.
Yvan KOENIG (VALLAURIS, France) vendredi 1 avril 2011 21:25:39

I am using server and client systems when i am trying to open the browser in two or more machines it says that firefox is already running, i want to open the browser in all machines simeltaniously

I am using server and clients machines in my office, here i want to open browsers in all systems simultaneously but i am unable open the browser, when i am trying to open the browser in the second machine it says that firefox is already open... pls. solve this problem
Thank you

You can't open one Profile more than once. You need a separate Profile for each browser on each PC that you open.
https://support.mozilla.com/en-US/kb/Profiles

When i loaded the latest version of firefox i was no longer able to open PDF files with Adobie.

I up graded to the new version of fire fox .05 and no longer have my PDF open. I use Adobie. On my lap top they open using 04.

You can change the action for Portable Document Format (PDF) from Preview in Firefox to use another application like the Adobe Reader or set to Always Ask in "Firefox > Options/Preferences > Applications".
You can set the pdfjs.disabled pref to true on the about:config page to disable the build-in PDF viewer.
You can check the value of the plugin.disable_full_page_plugin_for_types pref on the about:config page and remove the application/pdf part if present or reset the pref to the default via the right-click context menu if you want to display PDF documents in Firefox with another application (i.e. not the built-in PDF Viewer).
See also:
*https://support.mozilla.org/kb/view-pdf-files-firefox-without-downloading-them
*https://support.mozilla.org/kb/disable-built-pdf-viewer-and-use-another-viewer

How do I reset Firefox if I am not able to open the application after ending it on the task manager?

We changed the privacy options on firefox, closed the program, and now we are not able to open it. We have ended the process on the task manager, but it still will not open. We tried to uninstall it but it won't even let us do that. I've read lots of articles on how to reset firefox, but it isn't helpful when i can't get into firefox to try it.

See:
*http://kb.mozillazine.org/Browser_will_not_start_up
You can use one of these to start Firefox in Safe mode:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Help > Restart with Add-ons Disabled
*https://support.mozilla.org/kb/Safe+Mode
Can you bring up the Profile Manager to create a new profile?
*http://kb.mozillazine.org/Profile_Manager
*https://support.mozilla.org/kb/Managing+profiles

Since I updated Firefox I have not been able to open my mail because bing search pops up in the mail window instead. How do I get rid of bing so I can read my mail?

do not send to that email, I will not be able to verify.

You can check:
* [[Removing the Search Helper Extension and Bing Bar]]
You can open the about:config page via the location bar and do a search for bing via the Filter at the top of that page. 
You can reset all related prefs via the right-click context menu to their default values.

Updated to Firefox 4.0, now I can't open the browser.

I'm running a Mac OS X Version 10.4.11 Just updated to Firefox 4.0 after Yahoo advised that things would run better. Upgraded from Firefox 3.1.16 (I think).......now I cannot open the Firefox browser at all....it won't let me launch the browser. It says: "You cannot open the application "Firefox" because it is not supported on this system". How do I go back to the old version?.....at least I was able to launch it and use it? Any help would be appreciated.
Posted: Fri 06May2011

Sorry, Firefox 4 is not compatible with Mac OS X 10.4. You can download and reinstall the previous version (Firefox 3.6) from here: http://www.firefox.com/all-older.html
Or, if you have a PowerPC Mac, you can try this unofficial version of Firefox: http://www.floodgap.com/software/tenfourfox/

I am not able to open the browser at all?using firefox foe 3 yrs.what happened?

why my firefox is not running at all?

Try the procedures in this troubleshooting article - https://support.mozilla.com/kb/Firefox+will+not+start

How can I upgrade to Firefox 3.6.6 if I cannot open the browser of my current 3.5.10 version?

I can't open my Firexox browser and as I understand, upgrading to a new ff version will fix this problem and keep my settings and bookmarks as well. But how do I upgrade if I can't open my browser?
Alternately I could create a new profile of my current FF version and transfer my settings, but I have to close my current FF session which I can't do without accessing my browser which in turn won't open.
Either way I'm in a catch-22. Is there a solution for either issue?
== This happened ==
Every time Firefox opened
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.5; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

First, try to determine the reason that Firefox 3.5.10 is hanging or not starting. Since you did not specify, you will need to read some of the following to determine hanging or starting; hanging usually gives you an error message when you try to start Firefox. See below. If you install Firefox 3.6.6 over the top of 3.5.10 and the cause of the hanging or not starting is one or more extensions or plugins or some other cause, Firefox 3.6.6 may experience the same problem.
'''Kill Application'''
In Task Manager, does firefox.exe show in the '''Processes''' tab?
See: [http://kb.mozillazine.org/Kill_application Kill Application]
'''Causes and solutions for Firefox hanging at exit:'''
[[Firefox hangs]]
[http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit Firefox hangs at exit]
[[Firefox is already running but is not responding]]
'''Safe Mode'''
You may need to use '''[[Safe Mode]]''' (click on "Safe Mode" and read) to localize the problem. Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes '''before''' starting Safe Mode. When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode". Test to see if the problem you are experiencing is corrected.
See:
'''[[Troubleshooting extensions and themes]]'''
'''[[Troubleshooting plugins]]'''
'''[[Basic Troubleshooting]]'''
If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it by enabling '''one at a time''' until the problem reappears. '''You MUST close and restart Firefox after EACH change''' via File > Restart Firefox (on Mac: Firefox > Quit). You can use "Disable all add-ons" on the Safe mode start window.

After updating Firefox it will no longer open and i get the message "firefox.exe has encountered a problem and needs to close" end of story.

Firefox was working well. One day I logged on to use Firefox and was prompted to update my version which I did. After or during the update the following message was given on the screen "firefox has encountered a problem and needs to close". It closed and now every time I click on the firefox icon I get the same message from Microsoft. That is all the information I get. Each time I go to open Firefox I get the same message. There is an error message attached to the Microsoft dialog box, but I don't understand what it means.
I have sent it to Microsoft but no reply.

Make sure that you aren't running Firefox in some compatibility mode (e.g. [http://en.wikipedia.org/wiki/Rosetta_%28software%29 Rosetta]).

After updating Firefox, it continues to prompt me to download the new version and will not allow me to open a window.

I would love to use Firefox for my browser, but every time I update either that or Windows, I have problems with my computer. Are the two simply incompatible? Is there anything I can do to get my Firefox working again?

I would love to use Firefox for my browser, but every time I update either that or Windows, I have problems with my computer. Are the two simply incompatible? Is there anything I can do to get my Firefox working again?

After updating Firefox, I am no longer able to open the browser

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