Firefox won't open / run on my Mac.

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• Firefox won't open a new tab

  Firefox won't open a new tab on my browser - the option is there, but when I press nothing happens? I have checked all of my options, but couldn't find anything wrong?

  Hello, it seems that you run a very outdated version of firefox & old plugins - this is a serious security risk, because there have been dozens of corrected critical vulnerabilities from firefox 3.6 was released (it was more than two years ago).

  You must do the following as soon as possible:

  • Download and install the latest version of firefox from getfirefox.com
  • Check your plugins to https://www.mozilla.org/plugincheck/ & update all those which are obsolete
  • You can also remove all the toolbars you have installed, because they can cause problems. in firefox, go to tools > addons > extensions and uninstall Yahoo! toolbar, motor driven, Radio TV 2.1 Community Toolbar and "Ask Toolbar". then you can launch the searchreset extension to restore the search parameters which leads crushed...
  • do a full scan of your system with your security software

• 29.0.1 Firefox won't open links that require a new tab to be opened.

  29.0.1 Firefox won't open links that require a new tab to be opened.

  What type of links are those?

  As far as I KNOW, there is HTML code specific opening in a new tab, as it is to open a new window. Please enlighten me if this is something new to HTML5 that I haven't read.

  Now, Firefox has a preference in Options > tabs to open new windows in a new tab instead - you have this pref checked?

• Sometimes (often), Firefox won't open on my dock. I click on it several times, but he didn't budge. Any thoughts?

  Sometimes (often), Firefox won't open on my dock. I click on it several times, but he didn't budge. Any thoughts?

  If safe mode does not Firefox start, I recommend a clean reinstall.

• Firefox won't open - taskbar icon looks active but won't display

  Firefox does not open on the screen. The icon in my tray tasks shows a window, but the window does not open the monitor. I can RT. Click the icon and select Refresh, or maximize but no help. I'm under Win10. It also will not open on the screen when you attempt to do safe mode.

  Try to open the system menu via Alt + space to see if this helps to move the window in the view.

  Try to rename (or delete) the file xulstore.json in the Firefox profile folder.

  • C:\Users\ < user > < profile > \AppData\Local\Mozilla\Firefox\Profiles\.

  "AppData" (XP: Application data;) Mac: ~ / library. Linux: ~/.mozilla) is a hidden folder.

  • http://KB.mozillazine.org/Show_hidden_files_and_folders

• Firefox won't open the shockwave flash files because there are 2 types?

  Firefox does not open some swf files when I say that this is the cause. However, http://edmullen.net/test/poopboy.swf works fine.

  I looked in my Options-> Applications menu and found this http://i.imgur.com/kPVOHdE.png

  So it has got 2 different types of SWFs to meet him. I can't tell the top affliate background is the same way.

  I tried to uninstall the plugin. This removed the bottom and meant that the poopboy.swf I also linked didn't work in the same way, however, put it back, I was just back to the drawing board.

  I want to add that these particular .swf files that I'm running worked yesterday so file corruption is not the problem, especially since I went and all the redownloaded.

  These two SWF entries are on different MIME types that first one appears to be damaged or at least unusual. and probably the second (application/x-shockwave-flash) should be there.

  You can rename (or delete) the file mimeTypes.rdf in the profile folder of Firefox to reset all the actions file.

  • http://KB.mozillazine.org/mimetypes.RDF
  • http://KB.mozillazine.org/File_types_and_download_actions#Resetting_download_actions

• Firefox won't open with the latest version of the report of Trusteer installed deleted same and problem solved.

  I have 24 installed Firefox and the latest report of Trusteer endpoint protection software. Trusteer made it clear that it supported Firefox 24. However, once installed Firefox refuses to open. About Trusteer software uninstalling the problem has been resolved.

  You can try to contact support Trusteer.

  • http://www.Trusteer.com/support/report-problem
  • http://www.Trusteer.com/support/submit-ticket

  Mac: Preferences-> other->-> stop report report

• Firefox won't open the popup or when I do ' file &gt; new window "it does not open it too.

  When I click on a link that opens a pop-up window, firefox does not open it. Ditto for "file > new window.» Then, often after Firefox starts to malfunction and won't open my favorites. I uninstalled and reinstalled firefox, removed all extensions... But this does not solve my problem. can you help me please?
  Excuse me for my mistakes in English, I am a French person and I try to speak English the best I can so that you can solve my problem. Thank you.

  This has happened

  Each time Firefox opened

  == I click on a link that opens a popula

  Your above posted troubleshooting list shows quite a few extensions.
  You have really turned off all the and still had the problem?
  See Troubleshooting extensions and themes and problems of hardware acceleration to resolve common Firefox problems

  What security (firewall) software do you have?
  Some may block pop-ups as well.

• Wil Firefox won't open a new tab neigther with + or Ctrl + T

  Wil Firefox does not open a new tab and more (manually).
  Not with the + on the site tab
  nor with Bestand - new tab or Ctrl + T

  Uninstall the Ask Toolbar to Ask solves the problem created by their toolbar.

  • http://support.Mozilla.com/en-us/KB/uninstalling+Add-ons
  • http://support.Mozilla.com/en-us/KB/cannot%20uninstall%20an%20add-on

• Firefox won't open indicating his aready runs when it's not

  Firefox argued that his race and tells me that I have to restart my computer, I made... its still saying that his race, then I removed the battery for 5 minutes and tried again... still says his race, then I tried to uninstall... refuses to open the uninstall application

  Make sure that the profile of default value = 1 in profiles.ini points to an existing profile folder.

  You can remove profiles.ini to force Firefox to create a new default profile.

  See http://kb.mozillazine.org/Recovering_a_missing_profile

• Firefox won't open; How can I open it?

  Firefox opens up very well on my HP desktop. Yesterday morning, he refused to open. I tried to restart the computer, no change. I uninstalled and re-installed, no change. Google Chrome opens and works as my browser, but not firefox. I use windows 7. Any ideas? Thank you.

  Give errors trying to open?

  Try Firefox Safe mode to see if the problem goes away. Firefox Safe mode is a troubleshooting mode that disables some settings and disables most Add-ons (extensions and themes).

  (If you are using an additional theme, place you in default theme.)

  If Firefox is open, you can restart in Mode without failure of Firefox in the Help menu by clicking on the restart with the disabled... modules menu item:

  

  If Firefox is not running, you can start Firefox in Mode safe mode as follows:

  • On Windows: Hold down the SHIFT key when you open the desktop Firefox or shortcut in the start menu.
  • On Mac: Hold the option key during the startup of Firefox.
  • On Linux: Exit Firefox, go to your Terminal and run firefox-safe-mode
    (you may need to specify the installation path of Firefox for example/usr/lib/firefox)

  Once you get the pop-up, simply select "" boot mode safe. "

  

  If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to understand that one. Please follow the section Troubleshooting extensions, themes and problems of hardware acceleration to resolve common Firefox problems to find the cause.

  To exit safe mode of Firefox, simply close Firefox and wait a few seconds before you open Firefox for normal use again.

  When find you what is causing your problems, please let us know. This might help others with the same problem.

  Thank you.

• Firefox won't open any search with a search engine query. All are UNTRUSTED.

  I run the operating system MS Windows 7 Premium with Kaspersky as my security software.

  Then checked again. It seems to be security settings of Firefox and not Kaspersky causing the problem. Just in case it's Kaspersky, I added Google as an exception, but the problem persists. I also added Google as an exception of certificate in the Firefox config. and the problem still persists.

  The problem:

  I just can't open any page of web search in Firefox through any search engine because Firefox says that all are "unreliable", but I can open these pages in other web browsers.

  Any search gives this:

  Well the miserable loader does not load the image. So much for this, but basically, the notification is that "THIS CONNECTION IS UNTRUSTED" and the issuer of the certificate is unknown. Says error code "unknown sender".

  I do not get the ability to ignore the warning, so I have no other choice but to close the page each time. A nightmare, what makes Firefox unusable. Not sure that this is being caused by a recent Google update or the update of Firefox.

  I've checked then once again my security settings of Firefox and for the life of me, cannot understand why this has suddenly started happening out of the blue.

  Please note:

  1. I have Google as my search engine by default and Firefox as my home page.

  2. I've updated automatically, but had to remove like my Firefox default browser - temporary I hope.

  3. I've never used the default theme of Firefox.

  4. I already re-set/updated the browser by using the refresh/reset link in everything: support/troubleshooting Information. That did not help.

  5. I have Google as a reliable (in exceptional cases) site, in Firefox and Kaspersky, but that doesn't seem to help.

  5. have you spent to help and clicked on everything: firefox and get this report:

  Well there it is again - uploader is still running madly and never deliver - 10 minutes later - nothing downloaded. Version control on my Firefox in a dialog box States: 'FIREFOX 40.0.2 Firefox's update

  6. again on another page the search for my problem, I see this:

  Far out! Why this uploader freaking does not work? I have to type everything, besides being tedious, this gives you no verification. A line of text after another says:

  "Congratulations!" You use the latest version of Firefox.
  "Looks like you are using an older version of Firefox. Update on the Google game'
  "Contgrats!" You use the latest version of Firefox.

  Then further:

  In an area of button: "Refresh Firefox" I made according to the description.

  Immediately below that, it says:

  'Looks like you are using an older version of Firefox'... and in a direct link below:

  "updated to stay fast and safe"... Is this for real? [This would be more credible in a screenshot].

  7 about: support/troubleshooting Information I deleted my profile page and restarted Firefox by following the instructions.

  8. made no difference. Delete the file again and everything closed and restarted the system. That didn't work, either.

  9. all the text that I read in Firefox 'aid' resembles a cached page. I can't reveal all 'real' web pages in Firefox browser in Firefox support at all for some reason any.

  I love Firefox as a browser, but hate its constant glitches. For more than 10 years, I hate to admit it, I used that is never a problem. Then I switched to Google Chrome for another 5 years, with never a problem - outside the mining data and espionage which I hate and that's why I finally changed to Firefox. Firefox is the choice... but it's also a bloody choice as head banging and maybe it's just enough to make me give up on this.

  https connections are there to make sure you're traffic is encrypted and you talk to the Web server that you expect to. What happens technically with kaspersky, it is essentially a man-in-the-middle attack, which firefox reports to you as it should be - your web traffic does not go to google when you type in www.google.com, but for kaspersky.
  There are ways around that for av-vendors (such as the injection of their certificate root in the browser (it might go missing again after an update of firefox), but if there is a problem with you contact kaspersky support because they will be responsible for applying the product they offer properly.)

  in all cases, allowing the characteristics as https in your av software can even let you more vulnerable, because browser vendors have now greater expertise in how to use and implement encryption properly: http://www.scmagazineuk.com/updated-kaspersky-leaves-users-open-to-freak-attack/article/411470/

• Firefox won't open, not even in safe mode!

  Everything worked Friday (when I finally used Firefox) but this morning when I turned on my computer, Firefox will not work. I tried clicking on the toolbar button and the link in the start menu, nor work. I tried uninstalling and reinstalling, does not help. It gives me a little icon running, but disappears quickly without having to open Firefox at all. Is someone can you please help me understand why I can't get Firefox to open? Internet Explorer works fine, so all I can imagine is that an update has occurred during shutdown Friday.

  Hello

  Please try to use our function of refreshment.

  Refresh (called "Reset" in older versions of Firefox) can solve a lot of problems in restaurant Firefox as his default factory while saving your bookmarks, history, passwords, cookies, and other essential information.

  Note: When you use this feature, you will lose all the extensions, toolbar customizations, and certain preferences. See article Firefox Refresh - reset modules and parameters for more information.

  Refresh for Firefox:

  1. Open the troubleshooting information page using one of the following methods:
     • Click the menu button

       

       click Help

       

       and select troubleshooting information. Should open a new tab containing your troubleshooting information.

     • If you are unable to access the Help menu, type Subject: support in your address bar to bring up the troubleshooting information page.
  2. At the top right of the page, you should see a button that says 'Refresh Firefox' ('reset Firefox' in older versions of Firefox). Click on it.
  3. Firefox closes. Once the update process is complete, Firefox will display a window with the imported information.
  4. Click Finish and reopen Firefox.

  This corrects the problem? Please report to us!

  Thank you.

• Firefox won't open on my computer, even after relocation. Help, please?

  I use Firefox for a long time and it has been working well. I'm on Windows 7 acer. But now it will not even open when I try to run "C:\Program Files\Mozilla Firefox\firefox.exe" Chrome or Internet Explorer work well. I also reinstalled Firefox and it still does not work.

  Here's my last fall (of 30.4.2014) id: bp-4e981129-aea6-4b23-87a2-739b42140430

  Thanks for any help to solve this.

  Create a new profile as a test to see if your profile is the source of the problems.
  See "create a profile":

  • https://support.Mozilla.org/KB/Profile-Manager-create-and-remove-Firefox-profiles
  • http://KB.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

  Profile backup and restore

  • http://KB.mozillazine.org/Profile_backup
  • https://support.Mozilla.org/en-us/KB/back-and-restore-information-Firefox-profiles
  • http://KB.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

• Firefox does not open on a new Mac OS - profile cannot be found

  I got a new Mac and have not been able to open FF. I just got this message: "unable to load your firefox profile. It may be missing or inaccessible.

  I followed all the advice available. I have no profile manager. I have no folder in my library, utilities, Applications or users with a profile.ini I can't find folders or documents anywhere with Firefox or Mozilla other than the app itself... which does not open.

  I deleted Firefox to my computer entirely, reinstalled, rebooted the computer - everything. I always get this message.

  Would appreciate some advice.

  It is clear that there is a problem with the permissions, then you will need to check and possibly fix corrupted files permissions to the location where the main Firefox profile folder and where are stored the file cache.

  • < User > /users//Library/Application Support / Firefox/Profiles/< profile >.
  • /Users/ < user >/Library/Caches / Firefox/Profiles/< profile > / Cache