I have Chrome, Explorer and Firefox installed on my computer. Rarely use anything but Firefox. Now Firefox will not open. I am having to use Explorer. HELP.

Am using Windows 7 on Gateway DX4200-09.Am working with internet provider. May need to replace modem (it's a router/modem combination). Tricky part is that the other two browsers function fairly well. Just Firefox is dead in the water, refusing to even show its opening page. :(
Am considering uninstalling and just downloading the most recent one. Found the program through Control Panel, but the one listed from my Start Menu - all programs doesn't respond at all. Think it's juist a short-cut??

Hello, You can try our latest version of Firefox, its available [http://www.mozilla.org/en-US/firefox/features/ here]

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I have no navigation bar and firefox will not open in safe mode to reset to default config. Reinstalling doesn't work. Any help please.

I have no navigation bar ever since I closed it to gain more space on the screen. It won't re-open. Firefox will not open in safe mode, but opens immediately in normal mode with the new improper config, so I cannot reset to default config. I erased Firefox and re-installed and it still opens with the same faulty config. Why does Firefox not give me the safe mode dialog box, why can I not re-open the nav bar, and how can I do these two things, please? Firefox is currently unusable for me without a nav bar and without access to the default settings in safe mode. I cannot research the extensions I'm running since I have no nav bar to go to Tools, Add-ons, Extensions.
== This happened ==
Every time Firefox opened
== I closed the navigation bar to gain more space on the screen and I couldn't re-open it. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB6.4; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)

Hit the '''Alt''' key to show the Menu bar, then open View > Toolbars and select Menu bar and Navigation bar, so they have a check-mark.

I installed Spyware Doctor with antivirus and Firefox will not open but goes into Not Responding mode

After installing PC Tools spyware doctor with antivirus Firefox will not launch. I get a black screen with a not reponding message at the the top. I have tried an earlier version of Firefox (5) and this launch OK until I closed it and then it too refused to launch.

Hit the '''Alt''' key to show the Menu bar, then open View > Toolbars and select Menu bar and Navigation bar, so they have a check-mark.

Safari AND Firefox will not open Flickr or Yahoo

Hi
I'm running MAC OS X 10.7.5, Safari version 6.1.3 and Firefox 29.0.1.
Both Flickr and any related Yahoo page will NOT open on either browser.
WHen I try to open Flickr, Firefox comes up with the error message 'Unable to connect. Firefox can't establish a connection to the server at www.flickr.com'
Safari comes up with a grey screen and the error message 'Safari can't connect to the server. Safari can't open the page https://www.flickr.com because Safari can't connect to the server www.flickr.com'.
When I try Yahoo the Yahoo home page loads but everything is in blue text and a very basic version. If I click on any of the links the same error messages as above show up.
This has been happening for about 6 months. I was originally only using Safari, but installed Firefox only this evening in an attempt to try and solve the problem, but it has not helped. I get the same problem on both browsers. Safari worked fine before. I cannot remember anything happening or any change of setting that may have set this off. I have trawled every forum imaginable and followed all the advice I can find, to no avail. I have tried:
Clearing out caches. Regularly.
Resetting Safari
Changing the DNS settings
Looking into the Ipv6 settings (there is no option to turn it 'off'. Changing it to 'link local' only turned the WiFi off
Turning the Firewall off.
Turning the Firewall back on.
I have not tried changing any router settings as I'm not sure how. But I can open Yahoo and Flickr no problem using my HTC phone so it can't be a router problem? I am tearing my hair out here! I read somewhere that Yahoo and Flickr are very closely linked, so the problem must be related to a setting with these sites?
Can anyone out there help? Please!!

Marwood71,
yes, Yahoo! bought Flickr back in 2005, so they are closely linked.
If you’re trying to use Flickr’s secure HTTP site, then try connecting to https://secure.flickr.com/ instead.

While on Firefox my computer crashed and firefox will not open. Everthing else runs fine, how do I fix this?

I'm using a new Asus netbook and have no idea what caused the crash. I tried restarting firefox in the crash pop up window, nothing happens. I tried quitting firefox and then restarting in the crash window, it sends a report and that's all. I cant open firefox. I have power cycled the computer several times, tried to checking and install all plug ins, re-install firefox, uninstall and then reinstall ( could not reinstall), I restored the computer to the previous day and it still wont open. I tried opening it safe mode, I tried opening the computer in safemode, I still can't open firefox. I also tried to test for a virus by creating a notepad document on the desktop and naming in firefox.exe. Notepad ran fine. I also renamed firefox.exe to firefox3.exe. This didn't work and changed the name back.
What do I do now?
The computer I'm sending this from is not the one that crashed

Both your Conduit Engine, particularly, and Alexa Toolbar are known troublemakers. I would advise Googling both for advice and removal instructions.
I'm not sure it is a good idea to have both Foxit and Adobe Reader.

I am clicking on the Firefox avatar and Firefox will not open I keep getting a UML runner message what does that mean and have i lost my bookmarks as well

I keep getting an XUL runner- it says Error:App:Name not specified in application.ini
== This happened ==
Just once or twice
== firefox was trying to download update and i stopped it firefox is slowing down my computer sometimes ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
You can skip the step to create a new profile, that is not necessary for this issue.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Safari and Firefox will not open certain web pages

I just bought a MacBook yesterday and since then have not been able to open certain websites using firefox or safari. I have been trying to access www.recolorado.com and www.people.com and keep getting the error that the page timed out because server is not responding. I called apple support yesterday and was told to reinstall the operating system which did not help. My husband has a PC that is connected to the same internet connection and he can open these sites with no problem. I have tried resetting safari, but still can't get to these sites. Does anyone have any suggestions??

I was having the same problem and it was driving me INSANE because every solution I found on the internet said "just use Firefox!" (my default browser). It doesn't matter whether it's Firefox, Safari, Netscape, Opera, whatever, the computer was NOT accessing these sites. It seemed to coincide with a recent OS update, but maybe that's just my imagination.
Then my sister-in-law came over with her totally identical MacBook and complained of having the exact same problem accessing the same sites!
On top of this, I had no problem accessing these on my iMac in Chicago last week (running the same OS and software), so I concluded it had to be our router.
In my case, it was solved by simply rebooting the router. Have you tried this? It seems so simple, but now I can access every site that I was having trouble with. You might have to reconfigure something on your router, I don't know much about this. But my general conclusion is that something was wrong with the way the MacBook and router were communicating. Sorry I can't be more specific!

I updated my face book app on my iphone 4 and now it will not open, even after i rebooted the phone. help???

I updated my facebok app after the app store said that it needed to be updated and ow the app wont load when I try to open it. I have tried to install and reinstall the app and I have also rebooted the phone several times with no results

try settings>general>reset>reset network settings, i mean this sounds like its a facebook issue its self and that you would have to wait for another update, they were probably getting prepped for ios 6 and somehow this one got out for an update, they are usually pretty good about getting updates out.

Safari and Firefox do not open search engines

I have an IMac 8.1, with OS 10.5.8. Recently, our internet browser programs (safari and firefox) will not open any search engine (google, bing or yahoo). However, I am able to navigate to web-sites that I manually type in (e.g., www.cnn.com). Does anyone know what the cause, and fix, to this issue? Also, this behavior did coincide with a recent update to our Intego Antivirus software, but I think this is unrelated.
Any help would be appreciated. Thanks,

Also, this behavior did coincide with a recent update to our Intego Antivirus software, but I think this is unrelated
Maybe not. Most, if not almost all, anti-virus software interferes with OS X and is not required.
Try installing Glims:
If you want to fix your Google search to a specific Google location, I recommend that you download and install the free plug-in Glims:
http://www.machangout.com/
which not only does that but much more equally useful stuff! Such as enabling Safari to run full-screen, and more.)
(It adds items to Safari Preferences).
Not only does it already list a number of search engines and regions, but you can also add any other search engine not already listed in Glims by using the method described here:
http://www.machangout.com/tutorials/addsearchengine
Just enter the name you give the search engine in the name field, and the URL for it in the Query URL field.

Updated to android 2.3 on my htc evo 4g and now firefox will not open any tabs?

I've been using Firefox 4 since first few weeks of release and all was great with Android 2.2 on my htc evo 4g. Now updated to 2.3 this past weekend and Firefox will not open any tabs. Have resorted to using stock Dolphin... :(
I miss Firefox. What is the fix?

If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

I installed 4.0 and now firefox will not open, though it is running, I have uninstalled and re-installed and it still will not open?

I installed 4.0 and now firefox will not open, though it is running, I have uninstalled and re-installed and it still will not open. Not sure why this is happening

If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

I am on windows 7 and I upgraded to 10.0.2 and now it will not open. I have removed firefox completely and uploaded it again and that did not work. So my latest attempt I removed firefox 10 again and uploaded the beta version and once again nothing.

I am on windows 7 and I upgraded to the newest verison of firefox and now it will not open. I have removed firefox completely and uploaded it again and that did not work. I then made sure it could get through my firewall and that did not work. So my latest attempt I removed firefox 10 again and uploaded the beta version hoping that would do it and once again nothing. It will not open at all. Please help - is there a live chat or a number to talk to someone at Firefox?

I think when uninstalling you may also have to choose (tick) to delete the preferences and other personal data like the bookmarks, stored passwords etc. to erase completely. If you are installing afresh, please try right-clicking on the file and '''Run as administrator''' to install. And when uninstalling, please also make sure choose to delete all data and also manually delete any '''Mozilla''', '''Mozilla Firefox''' or '''Firefox''' from %appdata%, %localappdata% and %programfiles%. You can open a location by typing for eg. %appdata% in the '''Run''' box (Windows key + R). You may also have to check the '''VirtualStore''' folder in %localappdata%. Files in the VirtualStore can be problematic. I think a clean installation may help.
[https://www.mozilla.org/en-US/firefox/new/ Firefox]
[http://kb.mozillazine.org/Installation_directory Installation Folder]
[http://kb.mozillazine.org/Profile_folder Profile Folder]
Please note that using system restore would usually damage the Firefox installation.

Installed Adobe dlm add-on and now Firfox will not open. I see the process starting in Task Manager but no window opens. Unistalled Firefox then re-installed but still no luck. HELP ME!

''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/793259]''
I installed Adobe dlm add-on and now Firefox will not open. I see the process starting in Task Manager but no window opens. Unistalled Firefox then re-installed but still no luck. HELP ME! I do not want to use IE! I presume it has something to do with Adobe DLM as ever since then it is not working.

I had this problem for a couple weeks as well and it was extremely frustrating considering we use firefox for all our company tasks. Here is the solution:
First of all if you have no bookmarks you want to save, then go directly to step 7. If you want to save your bookmarks first, then follow these steps.
1. Shut down the computer
2. Reboot and open firefox
3. Go to Task Manager, right click firefox.exe, and click END PROCESS TREE
4. WAIT 30 SECONDS! Then Double-click the shortcut to try and open firefox again
5.Repeat steps 3 and 4 until firefox finally opens (trust me, eventually it will)
6. Once it finally opens, backup your bookmarks,
7. Download a copy of firefox from there website
8. Uninstall from programs menu and make sure to check the box REMOVE ALL COMPONENTS
9. install the new copy and BOOM! it works
If it doesn't work, you're an idiot. If you don't want to reinstall firefox, then you're out of luck. Good Luck!

Since upgrading from Windows Vista to Windows 7 both Internet Explorer and Firefox will not recognize the numbers keys of my keyboard. I get numbers in Word and every other situation, just not in the internet programs.

Since upgrading from Windows Vista to Windows 7 both Internet Explorer and Firefox will not recognize the numbers keys of my keyboard. I get numbers in Word and every other situation, just not in the internet programs. I have tried uninstalling Firefox and reinstalling with no results.

If there are problems with importing the IE Favorites in Firefox then export the favorites in IE to an HTML file and import that file in the Firefox Bookmarks Manager.
If you do not have the menu bar in IE then right-click the toolbar at the top to enable the Menu Bar.
*Export the favorites in IE to an HTML file (bookmarks.html):<br>File > Import and Export
*Import the HTML file in Firefox:<br>Bookmarks > Show All Bookmarks > Import & Backup > Import Bookmarks from HTML
See "Import from another browser" and "Import from file":
*http://kb.mozillazine.org/Import_bookmarks

I have just purchased a Canon 7d Mk2 but the raw files will not open in Cs5 and downloads of Adobe Camera Raw 8.7 will not install. What can I do?

I have just purchased a Canon 7d Mk2 but the raw files will not open in Cs5 and downloads of Adobe Camera Raw 8.7 will not install. What can I do?

Alternatively, install & use RawTherapee instead to develop your raw files instead (free and open source).
http://rawtherapee.com/

Firefox will not open, try to reinstall and message states firefox must be closed before install can begin.

firefox will not open. when i try to reinstall firefox the process stops. the message tells me to close firefox before i can proceed. but firefox is not running.

Prez,
I too have had this problem a few times with several different versions of FF.
What you need to do is to open a window to Task Manager (Ctrl-Alt-Del) and on the 'Processes' tab look down the list for Firefox, highlight the entry, then click "End Process". Accept the warning that pops up. You should then be able to uninstall.

I have Chrome, Explorer and Firefox installed on my computer. Rarely use anything but Firefox. Now Firefox will not open. I am having to use Explorer. HELP.

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