My firefox browser wont open

My firefox browser won`t open,,, i get a message that says "appication failed to start because plc4.dll was not found"...
Does anyone know whats wrong???
Thanks

Firefox will not start
* https://support.mozilla.com/en-US/kb/Firefox%20will%20not%20start
* http://kb.mozillazine.org/Browser_will_not_start_up
Check and tell if its working.

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Firefox browser wont open the message I get is "unable to establish connection to server" even though I am online

I was in the middle of a firfox browser sessions, but had to close it down as computer was playing up with other pograms I had open. When rebooted the system, I could not use the firefox browser and had the following message:
'''Firefox can't establish a connection to the server at search.findeer.com.
'' The site could be temporarily unavailable or too busy. Try again in a few
moments.
If you are unable to load any pages, check your computer's network
connection.
If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web''.'''
i then uninstalled it restarted my computer reinstalled it restarted my computer and had the same message come up when trying to open it.

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox 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.com/kb/Server+not+found
*https://support.mozilla.com/kb/Firewalls

Since I installed Firefox 3.6.3, every time I open Google Notifier, two Firefox browser windows open.

I am running Firefox 3.6.3 on my Mac G5 and my MacBook.
Since I installed Firefox 3.6.3, everytime I open Google Notifier, two Firefox browser windows open. This happens on both of my computers.
This never used to happen before, in the earlier versions.
How do I make it so that only one browser window opens?
== This happened ==
Every time Firefox opened
== I installed Firefox 3.6.3 ==
== User Agent ==
Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_4_11; en) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

I got this all screwed up too.
hmm.. where to start?
3.6 and 4.0 beta - really aren't intended to play well together.
As has been mentioned above, they tend to write over each other.
I managed to get both 3.6.15 and 4.0 beta 12 on the same machine.
But, I had to do it several times.
I got lucky by deleting everything Mozilla, then installing 4.0b12, then 3.6.15 - while making sure that each installed into a separate folder.
I also took care to copy out a couple of BookMark BackUp files - just in case.
My old 3.6# had become so bloated - and, Unstable - for Me, it was time.
The bookmarks were all that I was still interested in.
All the Plugins, Themes, AddOns, etc... had slowed the app to a crawl.
So, I did as complete a wipe of Mozilla bloat code that I could, including profiles.
I then did some registry cleaning.
Then I installed 4.0b12 and 3.6.15.
I can't open them both at the same time.
If I open 3.6.15 first, then open 4.0b12 - the beta comes up as 3.6.15.
If I open 4.0b12 first, then open 3.6.15 - the 3.6 comes up as the beta.
This has a lot to do with both apps sharing the same default profile.
I hope to drop down to one app in the near future.
So, cobbling multiple profiles in order to diddle side by side apps - isn't worth it at this stage.
For me, I can't open FF 4.0b12 when my virus protection is running. PCTools doesn't like some thing about the way FF4.0 wants to phone home when it opens.
So, I can't commit to the 4.0b12, yet.
3.6.15 was crashing on open too - until I uninstalled the feedback addon. - go figure -.
Also, I can't get the 4.0b12 to start in safe-mode with the PCTools antivirus running.
At the rater they are going, I don't see 3.6.# going away any time soon.

Since ff13 update to ff13.1 my browser wont open and also wont open in safe mode and i tried to download ff13.0 but it wont open also. so i dont know what to do

since ff13 update to ff13.1 my browser wont open and also wont open in safe mode and i tried to download ff13.0 but it wont open also. so i dont know what to do?

here the other promblem

My firefox browser didnot opens when i click it? i have to reinstall it each time

my firefox browser doesnot opens whenever i click on it?
i have to reinstall it each time when i connect.
== This happened ==
Every time Firefox opened

Back up all data before proceeding.
Launch the Keychain Access application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Keychain Access in the icon grid.
Select the login keychain from the list on the left side of the Keychain Access window. If your default keychain has a different name, select that.
If the lock icon in the top left corner of the window shows that the keychain is locked, click to unlock it. You'll be prompted for the keychain password, which is the same as your login password, unless you've changed it.
Right-click or control-click the login entry in the list. From the menu that pops up, select
          Change Settings for Keychain "login"
In the sheet that opens, uncheck both boxes, if not already unchecked.
From the menu bar, select
          Keychain Access ▹ Preferences ▹ First Aid
If the box marked
          Keep login keychain unlocked
is not checked, check it.
Select
          Keychain Access ▹ Keychain First Aid
from the menu bar and repair the keychain. Quit Keychain Access.

I cant get the firefox browser to open

I'll preface this by stating I have looked at several similar issues and none of the common fixes worked. My problem is that my Firefox browser will not open, PERIOD. All I get is the loading icon over my cursor, and then it simply goes away and nothing happens. I click on internet explorer (which I hate) and it opens immediately. I have tried the following suggested solutions. I restarted my computer, didn't work. I uninstalled and reinstalled Firefox, didn't work. I deleted processes from my task manager, didn't work. I started Firefox in safe mode, it wont open and thus didn't work. I am honestly out of ideas. This problem started occurring the evening of December 10, 2014. I am using the most recent version of Firefox. My computer is a Sony Vaio with windows 7. I have Norton as my anti-virus software (don't know if that info helps or not). In case it wasn't obvious, I cant open my Firefox browser, so any solutions that require me to open Firefox as a first step, will not work. Any help would be appreciated, but please do not suggest that I do one of the things I have already tried, unless there is a common step that most people miss when doing so. Thank you and I apologize if this comes across as rude, I'm just beyond frustrated right now.

hello hunterm322, since this can sometimes be caused by malware active on a system, please run a scan with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes], [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner] & [http://www.microsoft.com/security/scanner/default.aspx microsoft safety scanner].
[[Troubleshoot Firefox issues caused by malware]]

My firefox browser stopped opening.

Ever since I downloaded the new version of firefox, I have been having problems. First, because of my proxy settings I was not able to browse. I fixed that. Then, Firefox became increasingly slower and slower. And now, whenever I click on the icon, it just doesn't open. The web browser stopped opening completely. No matter how many times I double click it or right click and press open, it does not do it. The browser has not been working for about a week, and I have deleted all of my other browsers, so I cannot download another firefox without having internet. Also, I have virus scanned my computer and everything is fine.

Do a malware check with some malware scanning programs on the Windows computer. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan. 
*http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
*http://www.superantispyware.com/ - SuperAntispyware
*http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
*http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
*http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Multiple FireFox browser windows opened simultaneously do not have the same settings for many of the functions.

Secondary browser windows open at the same time do not have the same functions active. i.e. Back/Forward, Reload, Stop buttons and the url address does not show in the bar. I set the HOME page in the Options and it does not open with that Home Page. This never happened with any past FireFox versions.

Yes, it works OK. I disabled all add-ons & clicked Make Changes & Restatr I can open additional browser windows that retain the settings of the first window opened. I Disabled All Add-ons and Make Changes & Restart. How do I retain this?

My Firefox browser will open just fine, but the page is completely blank when it pulls up. Please help!

My laptop got infected with some kind of a trojan. I ran a full scan using my virus protection software, and after quite a bit of work (including a system restore), the infection seems to have been cleaned up and removed.
The problem I'm having now, is when I open my Firefox web browser page, it pulls up, but the page is completely blank. There is literally nothing in the page, no tabs, no home page, nothing. So, I cannot access the internet right now using Mozilla Firefox. I'm having to send this out via IE, which I do not like to use anymore. I was not having any issues with my Firefox web browser, until my pc got infected. Please help!

It is best to do a clean reinstall after doing a system restore in case some files got mixed up.
Download a fresh Firefox copy and save the file to the desktop.
* Firefox 4.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version.
Remove the Firefox program folder before installing that newly downloaded 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.
Your bookmarks and other profile data are stored elsewhere in the [http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder] and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
Also remove all rules for Firefox 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.com/kb/Server+not+found
* https://support.mozilla.com/kb/Firewalls

Firefox 8 wont open

using Firefox 8, closed the browser not even 10 minutes ago. also use chrome... in chrome i disabled the integrated flash plugin then went to re- open FF and nothing happens when i click the shortcut on my quickstart same thing when i try to open off desktop and thru program files.. running Vista.. sorry first time posting so dont what all u need.. is there a way to delete what i have now and re-install ver 8 while keeping my bookmarks/plugins

tried to download 9.. went to install and get error message saying to quit firefox to continue with installation.. checked task manager firefox is not running.. restarted lappy and tried again still same results..

Under linux firefox browser to open the video page causes the browser to crash.

Operating system version:Linux CenTos6.4 GNOME2.28.2
Web browser versions:Firefox31.6.0 in Firefox37.0.1
Flash Player version:11.2 r202 11.2.202.451
Open Tencent and Sina video browsing video will cause the browser to crash, has been closed hardware acceleration. More and more people are using the Linux desktop，I hope that Adobe can continue to update and maintain Linux systems support Flash Player。Thanks
Firefox fault report：
https://crash-stats.mozilla.com/report/index/bp-4a354992-b0a2-4e94-840c-40f512150404
https://crash-stats.mozilla.com/report/index/bp-d27ebf7d-cd04-41ea-abfc-79b232150404
Video capture：
http://pan.baidu.com/s/1bnnRhWr
http://pan.baidu.com/s/11z8Ua
Cause malfunctions page：
http://sports.qq.com/a/20150403/062653.htm

A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox 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.com/kb/Server+not+found
*https://support.mozilla.com/kb/Firewalls

My Firefox browser is opening in russian,I using in english?Is my Pc or browser hacked??

Just opening in russian

You have or had an extension installed (MegaUpload toolbar) that has changed the user agent from Firefox/3.6.12 to Firefox/2.0.0.13
You can check the general.useragent prefs on the about:config page:
* general.useragent.extra.firefox Firefox/2.0.0.13 MEGAUPLOAD 1.0
You can open the about:config page via the location bar, just like you open a website. 
Filter: general.useragent 
If general.useragent prefs are bold (user set) then you can right-click that pref and choose Reset.
See [[Web sites or add-ons incorrectly report incompatible browser]] and [[Finding your Firefox version]] 
See also http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default
Your above posted system details show multiple Java Console extensions. 
You can uninstall (remove) the Java Console extensions and disable the Java Quick Starter extension, you do not need them to run Java applets.
See http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions
See also http://www.java.com/en/download/help/quickstarter.xml - What is Java Quick Starter (JQS)? What is the benefit of running JQS? - 6.0
Disable the Java Quick Starter extension: Tools -> Addons -> Extensions
Control Panel -> Java -> Advanced tab -> Miscellaneous -> Java Quick Starter (disable)
You should update the [[Java]] plugin (Java Plug-in 1.6.0_12) to the latest version (6 U22).
*http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE)

Photoshop dot com Inspiration Browser wont open. I keep getting the license agreement for Adobe Air

The Adobe Air license agreement keeps coming up. I select "agree" and the license box goes away but Photoshop Inspirational Browser won't ever open up. Please help.

Go to the top menu in Organizer and click:
Help à Elements Inspiration Browser.
If you are not already signed in with your Adobe ID, a dialog box opens up, enabling you to sign in.

Browser wont open!

I just bought a bbz10 cause it seemed like a cool phone. I fell in love with it since the day i got it untill last night when i clicked the browser app and it didnt open, the brower app icon just blinked but it didnt launch. same with youtube and weather. also it is no connecting to my saved wifi. it doesnt even show the available wifi networks!! i regret buyning this thing!

Please clarify. Are you able to use the browser via any means? You keep saying WiFi, but nothing about your carrier data plan. Can you clarify if it works via either?
Is there anything that happened just before this behavior started? An update? Any new app? Anything at all? Think carefully...the tiniest thing could be causal. If you can think of something, attempt to undo it.
Are you perhaps on BES/Enterprise? If so, you should also check with your BES admins...maybe they put some sort of restriction in place and didn't tell you.
Otherwise, you'd want to proceed with an OS WIPE, and perhaps even an OS reload. You can do so via LINK or AutoLoader. Make sure you have a good backup.
Good luck!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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When i open firefox it wont open...even though it says it's running..

when i click on the mozilla icon on my desktop, it won't open up...but yet in my task manager it's saying it's running...I tried to reboot and still not working...I'm able to use Internet Explorer...

It is possible that your security software (firewall, anti-virus) blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
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
*https://support.mozilla.org/kb/fix-problems-connecting-websites-after-updating

My firefox browser wont open

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