Cannot open websites using firefox

firefox stopped working double click on icon nothing happens uninstalled firefox rebooted reinstalled firefox rebooted still double click on any icon with fired=fox does nothing does not show firefox as an option to pick as a browser

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 install 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
You can check if you can start Firefox in [[Safe Mode|Safe Mode]] by holding down the Shift/Options key.
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
You can create a new profile as a test to check if your current profile is causing the problem.
See "Creating a profile":
*https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

Similar Messages

I downloaded Firefox 4 onto my PowerPC G4 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application "Firefox" because it is not supported on this architecture. I can't find my Firefox 3.6.16 I'm on Safari.

I just want to download Firefox 3.6 again
I downloaded Firefox 4 onto my PowerPC G4, 1.67GHz running Mac OSX 10.5.6. When I try to open it I get error message You cannot open the application “Firefox” because it is not supported on this architecture.

Use Tony's suggestion. I am running it right now and it is awesome. I love Mozilla but they basically screwed all of those older Macs over. Come on Mozilla. These Macs still work, and there are plenty of people with them out there.

I AM UNABLE TO CONNECT TO ANY WEBSITE USING FIREFOX. EVEN THOUGH, I HAVE BEEN USING FIREFOX ON THE SAME COMPUTER FOR YEARS WITH NO DIFFICULTY. THE PROBLEM AROSE AFTER COMCAST, MY ISP, RECOVERED FROM A WIDESPREAD OUTAGE THAT LASTED 5 HOURS.

I SUCCEEDED IN TRANSFERING ALL MY BOOKMARKS TO GOOGLE CHROME. THIS WILL ALLOW ME ACCESS TO WEBSITES WHILE I WAIT FOR A METHOD TO REPAIR MY FIREFOX PROGRAM. IN A PREVIOUS MESSAGE, I EXPLAINED THAT I WAS UNABLE TO ACCESS ANY WEBSITE USING FIREFOX AFTER COMCAST, MY ISP, RECOVERED FROM AN OUTAGE THAT LASTED 5 HOURS. WHENEVER I TRIED TO CONNECT TO A SITE, A POP-UP MESSAGE APPEARED INDICATING: "UNABLE TO INITIALIZE THE APPLICATION'S SECURITY COMPONENT. THE MOST LIKELY CAUSE IS PROBLEMS WITH FILES IN YOUR APPLICATION'S PROFILE DIRECTORY. CHECK THAT THIS DIRECTORY HAS NO READ/WRITE RESTRICTIONS." I EVEN REMOVED FIREFOX FROM MY COMPUTER AND DOWNLOADED IT AGAIN, FIGURING THAT BY NOT MERELY USING AN UPGRADE, I WOULD BE INSTALLING A COMPLETELY FRESH DOWNLOAD. UNFORTUNATELY, I RECEIVED THE SAME DISAPPOINTING RESULT, WITH THE SAME POP-UP MESSAGE RE-APPEARING. HOWEVER USING BOTH GOOGLE CHROME AND INTERNET EXPLORER, I WAS ABLE TO CONNECT TO WEBSITES. SO I HAVE TO CONCLUDE THAT THE PROBLEM IS NOT WITH MY INTERNET CONNECTION.

Press '''START + R''' in keyboard to open the '''Run''' box(or '''start''' then '''run''') , type in the RUN box '''%APPDATA%''' (or copied in just i wrote, bold text) then click '''OK'''. A Windows Explorer window will appear, in this window, choose '''Mozilla''' then '''Firefox''' then '''Profiles'''. Each folder in the "Profiles" folder (e.g., "xxxxxxxx.default") is a profile on your computer (maybe is one file if you have only one profile).
see for more info : [http://kb.mozillazine.org/Profile_folder_-_Firefox Profile folder - Firefox ]
try it, good luck
thanks again

I am receiving pop up alerts when opening and using firefox stating "win 7 total security 2011 has blocked a program" is this a virus and how can i fix it?

Whenever I open or use Firefox I'm receiving a pop up message telling me I am under attack and my info is at risk and I am being prompted to activate "win 7 2011 total security" to remove the threat.
I have run my own virus scan and nothing is detected.
Is this legitimate from Firefox?
If not, how do I safely remove the threat?

"win 7 2011 total security" is a rogue application. For details on it see http://www.2-viruses.com/remove-win-7-total-security
To ensure your computer is clean try running several malware scanners. It is best to run several as each will pick up things that the others miss. Some scanners you can try are:
* Malwarebytes - http://www.malwarebytes.org/mbam.php
* SuperAntiSpyware - http://www.superantispyware.com
* Ad-Aware - http://www.lavasoft.com/products/ad_aware_free.php
* Windows Defender - http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
* Spybot S&D - http://www.safer-networking.org/en/home/index.html

I am trying to install Firefox 4 on my Mac OS 10.5.8 and I get the error message "You cannot open the application "Firefox" because it is not supported on this architecture" Help!

I am trying to install Firefox 4 on my Mac OS 10.5.8 and I get the error message "You cannot open the application "Firefox" because it is not supported on this architecture" Help!

Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox
If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html
Mozilla are working to prevent Mac users with non-compatible systems from getting the notification about Firefox 4, and also not displaying the "Download Firefox 4" button on http://www.mozilla.com

How do you block a website using Firefox 5.0

How do you block a website using Firefox 5.0

You can use a program such as [http://www.123blockme.com 123BlockMe]. It will allow you to block any website on Windows and it works with all browsers including Firefox.

U/tube videos open when using Safari but will not open when using Firefox.

u/tube videos open fine when using Safari but will not open when using Firefox. With Firefox I get the unhighlighted Quicktime symbol with a question mark in the center. WHY?? Any help appreciated --- Toroya

Hmmmm, strange you view YouTube in Safari & not FF. Which version of FF are you using?
Try the following:
Repair permissions & restart.
Make sure you have the latest versions of Adobe Flash Player Software
QuickTime Preferences > Advanced > MIME Stettings > Miscellaneous.
Deactivate the "Flash Media" option.

Went to upgrade and says OS too old. I went back to older version of foxfire. Now I have a circle with a line through it and when I try to open it I get,You cannot open the application "Firefox" because it is not supported on this architecture.

I have PowerBook G4, running 10.5.8. Went to upgrade and says OS too old. I went back to older version of foxfire. Now I have a circle with a line through it and when I try to open it I get,You cannot open the application “Firefox” because it is not supported on this architecture. Thanks for the help.

Firefox 3.6.x is the last available from Mozilla for PPC Macs. 
http://www.mozilla.com/en-US/firefox/all-older.html
For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 . 
http://www.floodgap.com/software/tenfourfox/ 
http://tenfourfox.blogspot.com/ 
https://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported

I cannot open a 2nd firefox window

I cannot open a 2nd firefox window. And if I close firefox, I cannot not restart unless I go to the task manager and close it there too

See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* [[Firefox hangs]]

I am unable to connect to websites using Firefox. I can connect to websites with Internet Explorer. Please advsie.

I am unable to connect to websites using Firefox. I can connect to websites with Internet Explorer.
Please advise.
Thank you.

see http://kb.mozillazine.org/Firewalls

Unable to open https sites. can open when using firefox in safe mode.

Mozilla Firefox has been an exceptional browser, however in the last update I have experienced problems when trying to open https sites. They will not open and then time out. I do not have this problem when using Internet explorer. I have contacted customer service at the problem sites, and they have said other customers have also experienced this problem. I have gone into options and have changed various settings to see if this would solve the problem. It didn't, your response would be appreciated.. Please note if I use firefox in safe mode I can access these sites? My E-mail as follows: [email protected]

Did you perhaps install an extension to open sites with https
# Type '''about:config''' into the location bar and press "Enter"
# Use Find ("Ctrl+F") to look for '''https'''
One such extension is "HTTPS-Everywhere"
As you probably know Firefox Safe Mode disables extensions and some preferences.
http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Extension_issues
You posted a question here: you should check for all of your answers at...
:Unable to open https sites. can open when using firefox in safe mode. | Firefox Support Forum | Firefox Help
:https://support.mozilla.com/en-US/questions/872957
You are expected to pick up your answers where you post them, in the upper right corner is a "get email updates" that you can click on. For more information, see my avatar icon to the left of my reply where you posted.

Cannot open favourites using the Firefox tag that usually opens up the menu and a new page.. Now I get the dropdown menu but cannot open a new page, losing the homepage every time I explore, can you say WHY? all other versions worked fine!

I cannot open a new page from the Firefox favorites menu, it worked before in other versions and this new 5.1 version, but stopped working a few days ago, uninstalled, downloaded a fresh program.. same problem exists. I usually leave my 'Home Page' as a stable page and just open 'new' pages for i.e. Google, Internet Banking etc. the '+' sign on my home page or other loaded pages does not operate, hate having to now constantly sign in to my hotmail home page if and when I open new pages, can you help?

Websites remembering you and automatically log you in is stored in a cookie.
* Create an allow cookie exception (Tools > Options > Privacy > Cookies: Exceptions) to keep such a cookie, especially for secure websites and if cookies expire when Firefox is closed.
Make sure that you do not run Firefox in Private Browsing mode.
* https://support.mozilla.com/kb/Private+Browsing
* In [[Private Browsing]] mode all cookies are session cookies that expire if that session is ended, so websites won't remember you.
* Do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences"
Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.
* http://kb.mozillazine.org/Cookies

I cannot log into a website using firefox

Hello
I cannot log into a companies website that I work for using firefox. http://www.serviceplussupply.com/

Hello spacebyrdz, any luck if you [https://support.mozilla.org/en-US/kb/delete-cookies-remove-info-websites-stored#w_delete-cookies-for-a-single-site delete the cookie for that site] ?
clear the cache also, go from "3-bar" menu button > Preferences > Advanced panel > Network tab > in the Cached Web Content section > click Clear Now.
thank you

Show a message to suggest opening a website using Firefox

Hello,
I would like to show a message (eventually with redirection) at home page loading time, that suggests using Firefox for better view experience.
Something like this.
Would you like to view lisanuna.com
in Firefox (recommended)
YES - NO
Thank you!

Or at least Is it possible to add a link on my home page that reloads the home page but using Firefox instead of the current browser?
Sorry for the messy aspect of the message above ...
Asterisks have turned into bullets!

When I attempt to sign up for the Samsung website using Firefox on my macbook, it returns an error that the random question answer is wrong

I was attempting to create a user at this site:
http://www.samsunggalaxys3forum.com/forum/register.php?do=addmember
It asks a "random" questions "Floors are horizontal, walls are ___?" When I hit submit, it returns an error that the answer was wrong. I tried several times using my macbook running firefox.
I get to work, where I am using an intel based machine running Windows 7, IE 9 and am able to register on the site and answer the question with no problem.
I have had the same problem on sites that use captcha - I cannot get past inputting the captcha phrase, as it returns an error every time, while using IE9 is problem free.
Is there something wrong with my setup of Firefox?

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!

Cannot open websites using firefox

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