Firefox won't open when clicked on

It does the windows loading symbol and then doesn't open. Only just installed it as I'm currently using google chrome and it won't let me open it.

Hi cats4lyfgee,
I am sorry to hear that Firefox will not start when you click on it. [[Firefox takes a long time to start up]]
If not, please make a back up of your profile to preserve data: [[Back up and restore information in Firefox profiles]]
ote:''' 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.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING:Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See [[Back up and restore information in Firefox profiles]]. 
Please report back to say if this helped you!
Thank you.

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Firefox won't open when clicked in the dock on my Mac

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As a point of clarification, does Firefox launch if you double click it from your Applications folder through the desktop (Finder)? If yes, right click (or Ctrl-click) on the Firefox icon in your Dock and choose Remove From Dock, then drag it on again from your Applications folder. The only other thing I can think is if it's already running but with its window hidden, clicking it again in the Dock might not be bringing it up. In that case try a Force Quit (from the Apple menu at top-left of your screen, click Force Quit..., choose Firefox in the list and click the Force Quit button).

Firefox won't open when I click on the icon. I've tried uninstalling so that I can reinstall, but it says I have to close firefox (which isn't open), so I'm stuck.

The problem: Firefox won't open when I click on the program.
Solutions tried: #1) I tried to uninstall the program so that I can download it again, but the screen shows the message "firefox must be clsoed.. to proceed with installation". However, firefox is not open.
#2) I tried to download firefox, thinking that possibly it would update and solve the problem. However, I get the same error message that "firefox must be clsoed.. to proceed with installation" Problem is that firefox is not open.
I've done a screen shot, so you can see that I do not have the firefox browser open.

Thanks for the reply. I tried repairing the permissions (as well as several other things like deleting the Finder preferences file), but no dice.
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Firefox won't open when prompted the first time. Says "Not Responding". I have to hit cntrl/alt/del then try starting again. Sometimes multiple times.

Sounds like a "hang at exit" problem. There are several possible causes for that error. See:
* How to stop the running Firefox process
** In Task Manager, does firefox.exe show in the '''Processes''' tab?
** See: http://kb.mozillazine.org/Kill_application
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** http://support.mozilla.com/en-US/kb/Firefox+hangs (see "Hang at exit" section)
** http://kb.mozillazine.org/Firefox_hangs
** https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding
* You may need to try Firefox Safe Mode
** You may need to use '''Safe Mode''' to locate the problem: http://support.mozilla.com/en-US/kb/Safe+Mode
**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.
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** See the following for more information
*** http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes
*** http://support.mozilla.com/en-US/kb/Troubleshooting+plugins
*** http://support.mozilla.com/en-US/kb/Basic+Troubleshooting

Firefox does not open when clicking on the icon, the firefox.exe process consumes 99 % of the CPU and my computer runs slowly.

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Born2die! Brilliant. I am a desktop clicker and never knew Firefox had a safe mode.
Thank You!
I was unable to start in safe mode initially. The second time I disabled all of the Add-Ons and she started up just fine. I enabled them one by one hoping to track down the culprit but the problem seems to have gone away.
BTW I am running ver. 3.6.8 (in response to cor-el's earlier post) and
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Incidentally, whats up with all of the Java Console Add Ons?
I have:
Java Console 6.0.11, Java Console 6.0.13, Java Console 6.0.15
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Also, .NET Framework 0.0.0 Should I uninstall it?

I've upgraded to FF4 uing windows 7 64-bit - won't open when click on shortcut, have tried to reinstall etc, prev ok with version 3+

I've upgraded to FF4 uing windows 7 64-bit - won't open when click on shortcut, have tried to reinstall etc, prev ok with version 3+

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1. Install WMDC 6.
2. Plus the Windows CE based device.
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6. Right-click and select "Update driver..."
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Hi,
Open the Font Book and check the AppleGothic Font is Active, not duplicated and Validates (File Menu).
In the list of fonts it is a long way down.
After that check Helvetica Neue and Lucida Grande.
The first deals with the iMessages Login.
The next is the Font used in the app to display the text.The last is the one that title the Group Bars in Buddy lists (even if you don't show then you need this)
If they check out go to Applications/Utilities and open the Disk Utility and then Repair Permissions.
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9:06 pm Wednesday; March 25, 2015
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== This happened ==
Every time Firefox opened
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== User Agent ==
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See my update at 6:46PST - having the very same problem on a MacBook Pro. Someone named "Sherry" posted around 5:42PST w/ same problem. No techies are picking up on these posts, though. Please add a comment to mine as well to keep it at the top and see if we can get some visibility to what is obviously a bug.
Did you upload a new version/update? That is what caused my problem

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HT202159 I downloaded Dragon Express and now it won't open. It says it is INSTALLED but it won't open when clicked. Tried to trash it and start over but won't let me trash because it says it is open. But it isn't! Called mac help and they can't help e

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Well first of all this is a public forum, so keep that in mind. The users here generally can not look up your case numbers.
If AppleCare didn't work out for you, I believe your next step is
iTunes Store Support
http://www.apple.com/emea/support/itunes/contact.html
Unfortunately, their case indexing is on a different database, and they will not be able to look up your case number either. However, their support is free, and despite it may take a few bounces of emails back and forth, there is a decent chance they may be able to get a solution.
Or... you can still try to shoot the **** with us here, which is Ok as well. But you'll have to keep in mind we can't look up your case numbers.
By the way, the link for a refund, I think is for the same link I just gave you, so on second though, mabye it's best to just go there.

Firefox won't open when I click on it.

I click on both the icon in the dock and in the apps folder. When I click on the icon in the dock it bounces a couple of times and then nothing, it doesn't open and no white dot appears like they do on open apps in the dock. I am running the latest Mac OS. After having this happen I updated my software and downloaded at new version of Firefox off the web but the same thing happens. I have not downloaded anything in the last week and have been using firefox up until today.

okay I threw away my profile for firefox in library/application support/firefox and now it opens, a corrupt file apparently. Sorry for my tardy reply, sounds like you may have solved it, but I figured this might help someone else.

My Firefox won't open when I double click it. 16.0.2

Okay, so I got this new computer (Gateway) on Friday, and Sunday Firefox decides to not work. I have been un-installing and re-installing Firefox. I have done this like 20 times. Didn't help. I also have tried pressing 'shift' while double clicking on the icon for Firefox, didn't work either!! I'm currently using Explorer (not crazy about.. but will have to deal until this gets solved). I have also tried this link:
http://www.mozilla.com/en-US/firefox/all.html. Did not work either.
Please help me!!!

A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program (16.0.1 to 16.0.2).
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
*https://support.mozilla.org/kb/Server+not+found
*https://support.mozilla.org/kb/Firewalls
See also:
*http://kb.mozillazine.org/Browser_will_not_start_up
*http://kb.mozillazine.org/Error_loading_websites

Mail won't open when clicked

Hi, this has been going on for sometime, I have been putting up with it BUT I have now had enough of it !!!!!
I tap on the Mail Icon in the Dock, Mail doesnt Open, quite often there is what appears to be a Mail Window opening but it disappears as quick as it arrives.
The only way I can Open Mail is to lightly double tap my mouse pad, which pops up a menu from the Mail icon, there is often a list of previously opened Mail windows, I can often select one these, but only the one showing a Black 4 sided Diamond shape opens a Mail window, if it is blank or has a Tick, it doesnt open at all.
Failing that I have to select Open New Viewer window
It shouldn't be like that, WHY ???? and what can I do about it.
I have been back to the Apple shop with this problem, he whizzed around deleted a few things in the Library and it worked normally. BUT of course when I get home it soon MIS-BEHAVES again !!!!!
https://www.dropbox.com/s/9427ir6om28i2qh/Screenshot%202014-12-01%2020.02.42.png ?dl=0
See image above, this may help explain easier my problem, normally MAIL should open by tapping the Mail Dock Icon, I just did that , it did nothing, zilch.
instead I have to often SELECT "New Viewer Window", other times I get by, by selecting one of the recently opened Windows with a Black shape next to it !!
Tim

Please follow these directions to delete the Mail "sandbox" folder.
Back up all data.
Triple-click anywhere in the line below on this page to select it:
~/Library/Containers/com.apple.mail
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu.* A Finder window should open with a folder named "com.apple.mail" selected. If it does, move the selected folder—not just its contents—to the Desktop. Leave the Finder window open for now.
Log out and log back in. Launch Mail and test. If the problem is resolved, you may have to recreate some of your Mail settings. You can then delete the folder you moved and close the Finder window.
Caution: If you change any of the contents of the sandbox, but leave the folder itself in place, Mail may crash or not launch at all. Deleting the whole sandbox will cause it to be rebuilt automatically.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.

MSN Hotmail/email links won't open when clicked on

email links go dead

Win7 / FireFox 3.6.13 / Win Live Mail 2011
Tried setting IE8 to default internet app & surprise, surprise - Hyperlinks within Windows Live mail now open fine!
Set FF back to default app & hyperlinks DONT work again.
Tried setting .url association to poinr specifically to FF - still no go.
Hyperlinks do work fine when running Hotmail via the net instead.
Waiting for a reply I guess as I'm still 'finding my way' around Win7
Can Mozilla please build their own OS :-)
Cheers - Frank

Firefox won't open when clicked on

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