Firefox will not load a Web site if the assets are missing from the page

Some sites Web page can try to include a CSS or JS asset that is missing. In this case, Firefox 30 seems to hang and the page never loads. This happens even in Safe Mode. Other browsers have no problem loading these pages.

I can give you two example URL, as well as the missing assets which causes the problem, but I don't know if I'm supposed to post links or not.

Please do not take into account. After returning from safe mode, it offers to reset everything and import my data. Once the browser has been reset, well not loaded loading pages.

Tags: Firefox

Similar Questions

  • Recently firefox will not access any web site Acer Aspire 1 Linux

    For the past few days firefox will not access any site, even if the wireless network is connected ok. NetBook runs ok other applications without any problem. When the browser shortcut is selected, shortened browser turns for a few seconds then stops. Nothing else happens.

    Can sometimes get the message 'cannot run the web browser by default. Input/Output error.

    I had the same problem (Acer Aspire One LINUX). RELOADED FireFox by following the instructions here:

    Worked a treat.

  • July 24, 2010, firefox will not load a Web page. I uninstalled 3.6.8 and you want to re - install 3.6.2. How can I do this?

    My firefox updated version will not work. I uninstalled and want to return to my previous version that still worked. I have Microsoft Vista. Please help as soon as possible.

    This has happened

    Each time Firefox opened

    July 24, 2010

    User Agent

    Mozilla/5.0 (Windows; U; Windows NT 6.0; Chrome/5.0.375.99 en-US) AppleWebKit/533.4 (KHTML, like Gecko) Safari/533.4

    This can be caused by a firewall blocking internet access to Firefox. See that configure the firewall so that Firefox can access the Internet. This link has a list of popular firewall and how to configure it to work with Firefox.

    See also Firefox cannot load websites but other browsers may

    If you need to install an earlier version, see install an older version of Firefox.

  • After firefox update will not load any web site and continually loading shows. IE works fine.

    After closing firefox, the program won't resart for a few minutes. systems says firefox is running and must be closed.

    One possible cause is security software (firewall) that blocks or limits Firefox or plugin-container process without informing you, possibly after the detection of changes (update) for the Firefox program.

    Delete all rules for Firefox in the list of permissions in the firewall and leave your firewall again ask permission to get full unlimited access to the internet for Firefox and the plugin-container and the update process.


  • Firefox can not treat some Web site passwords that other browsers may

    Once the loading of Web site, enter the user name and password but site will not treat, bringing back me to the log on screen. After that two or three unsuccessful attempts, ordered the screen to change your password. Password change does not help. So far, only two sites were made. Have no problem with the IE browser

    This problem may be caused by corrupted cookies or cookies that are blocked.

    Clear the cache and delete cookies only from Web sites that cause problems.

    "Clear the Cache":

    • Firefox/tools > Options > advanced > network > content caching Web: 'clear now '.

    'Delete Cookies' sites causing problems:

    • Firefox/tools > Options > privacy > "Use the custom settings for history" > Cookies: "show the Cookies".
  • Mac will not load some web pages but works in safe mode


    I am trying to solve the following problem...

    MacBook Pro with 10.11.3 will not load some web pages ( are just a few). Browser will not make a difference.

    Looked around the discussions and tried a few remedies but without success. for example, change the dns data, site reset or create a new user and I have tried several different networks.

    All the site will load in safe mode.

    Thank you guys!

    If they load in Safe Mode, then it is a third-party plug-in or software blocking sites while not in Safe Mode.

    Do you have the third-party antivirus or firewall? Do you have any unknown third party plugins or extensions?

    Open the Finder, click go > go to folder, copy and paste the following and click on Go

    ~/Library/Internet plug-Ins

    This is where your plug-in user. By default, this folder must be completely empty, so anything here has been added either by you or with 3rd party software that has been installed. You can move anything in this folder on the desktop and then try with your sites. If this works, your choice in their folder one by one until it doesn't. Remove the problem and it redownload only if you really need.

  • Single-pass does not work for Web sites after the last update of firefox

    Single-pass does not work for Web sites after the last update of firefox. This works in IE and Chrome and it works under windows (when starting the computer), but not with any website in Firefox.

    Firefox 30 spent some less commonly used "Always turned on" plugins "asking to activate. To check and change this to SimplePass, you can use the page modules. Either:

    • CTRL + SHIFT + a
    • "3-bar" menu button (or tools) > Add-ons

    In the left column, click on Plugins. Then on the right, check the control on the right side of the SimplePass.

    You may need to exit Firefox and start it again before it takes effect.

    A little luck?

  • Firefox will not load https pages. gives the security warning and will not accept an exception.

    I had problems with Firefox and some sites for about a year, and it is located in my laptop. I have no problems when using my desktop at work or my dad's cell phone in his house. Some sites simply returns a page of text style; no html. Other sites give me a security certificate warning and FF will not accept an exception for this site, either by clicking the button or manually enter the site as an exception. Tonight, GOOGLE will not load again! Why, it's trying to load on an https server, I don't know, however. Several other sites have also begun does not not and are also trying to load it on a secure server.

    Use Kaspersky, AVAST 2015, ESET, BitDefender or Microsoft family safety? These are among the most popular security programs which have a function to intercept your Internet connections and filter your traffic. When it's a secure site, in order to be able to decrypt and inspect your communications, the software must present a false certificate for Firefox. Sometimes, the software is not able to configure Firefox for this, or if you use the function of Reset of Firefox, the trust is broken and needs to be put in place again.

    Unfortunately, the same symptoms can appear with some malicious software.

    If you look at the second half of the post of Philipp, you see where you can check the section 'From' the certificate. This usually allows to identify the culprit. Can you take a look and report what you find?

  • How to fix when not loading http Web sites?

    My Mozilla Firefox does not load all the http sites, only https, can someone help me? I tried other browsers, but it works very well. It only happens in Firefox.

    It is possible that your security (firewall, antivirus) software blocks or limit Firefox or the process of plugin-container without you inform, possibly after the detection of changes (update) for the Firefox program.

    Delete all rules for Firefox and the plugin-container in the permissions list in the firewall and leave your firewall again ask permission get full and unrestricted, access to the internet for Firefox and the plugin-container and the update process.


  • Firefox will not load farmville website.

    The website of farmville does not load. I can access the login page and when I login it takes me a few seconds in and out of the site. I can't play in the Web site and I can't click anything. It bascially newspapers regulate me.

    URL of affected sites

    same problem (3.6.3)

  • Facebook will not load, but other sites work fine!

    Hi guys

    I have a problem, and I am very sad

    Facebook page does not load, but other sites work fine! Only FACEBOOK.

    I deleted history/empty caches/delete all site data / but nothing.

    I reinstall El Capitan 10.11.6 updating still nothing.

    I deleted the cookies/cache it always draws nothing

    In the other browser works very well only safari are break down

    Who has encountered this problem?

    Thanks in advance


    You can have a third party Safari installed third-party plugin or extension that prevents loading Safari Facebook.

    In the Safari menu, click Safari > Preferences, and then select the tab Extensions extensions uninstall then leave then restart Safari to test.

    If it is not a question of extensions, try troubleshooting third-party plug-ins.

    Back to Safari > Preferences. This time select the tab Security Deselect: plug-ins Allow. Quit and restart Safari to test.

    If it makes a difference, the instructions of troubleshooting plugins here.

  • How to prevent the FF loading all Web sites using the HTTPS protocol

    FF is trying to load initially all Web sites using the HTTPS protocol, including of Then I get the error of no reliable connection of course. Mozilla .org is the "invalid security certificate" and "the issuer of the certificate is unknown." I tried to delete the file cert8.db as suggested elsewhere but that did not help. If there is an option for this somewhere, I can't find it. I have the latest version of FF and Win7 running. Thanks for the help.

    There must be some sites that are still using a secure connection, as If even a link to Amazon is redirected, you can check if you have an extension like HTTPS Everywhere.

    For Mozilla sites, Yes, you establish a secure connection.

    But you shouldn't get certificate errors! When you get this for virtually all secure sites, the problem is usually as follows:

    (1) error of date, time, or time zone who throw checks validity of the certificates of your system. Sometimes allowing to use a timesource on the internet, the computers can introduce this problem.

    (2) not be set up to work with your security software that intercepts and filter secure connections from Firefox. Products with this feature include Avast, BitDefender, ESET, Kaspersky; AVG has a shield search function which can cause this error on search sites.

    (3) malicious software on your system for the interception of secure connections.

    So... who is?

    If you have any of these specific security products, which would be the first thing to check. We might be able to help with specific next steps based on what you have if you tell us.

    Alternatively, you can examine the certificate to which Firefox is opposed to see if the issuer information pointing to the culprit. Take for example my test page:

    You should see a section "I understand the risks" in the page. If you expand this section, you will find a button Add Exception. You don't need to complete the process of adding an exception (I suggest not adding one until we know that it is not a problem of malware), but you can use the dialog box to display the information that makes Firefox suspicious.

    Click Add an Exception, and then view. If the view is not enabled, try first the button get certificate. Then in the certificate Viewer, refer to the section "issued by". What do you find here, or under the hierarchy of certificates? I have attached a screenshot for comparison of screen.

  • Firefox 5.0.1 open Web site automatically to a new tab from time to time which is very annoying

    I have Firefox version 5.0.1 on MS windows XP. My problem is that Firefox opens a Web site automatically in a new tab from time to time, which is very annoying.
    I scanned my computer against virus and malware using a lot of programs, but this has not fixed this annoying problem.

    Web sites that open automatically are:


    No idea how to solve this problem?

    you have installed net Cup Defender I guess was completely uninstall it and the browser hijack check that you have removed the following files.

    • Itemc:\Documents and Settings\All Users\Menu bulleted list\netcutdefender help.url Menu\Programs\

    • ItemC:\Documents and Settings\All Users\Menu bulleted list\netcutdefender.lnk Menu\Programs\

    • ItemC:\Documents and Settings\All Users\Menu Menu\Programs\\Uninstall bulleted list


    • ItemC:\Documents and Settings\All Users\Menu bulleted list


    • ItemC:\Documents and Settings\All Users\Menu Menu\Programs\WinPcap\Uninstall bulleted list

    WinPcap 4.1.2.lnk

    • ItemC:\Documents and Settings\All Users\Menu Menu\Programs\WinPcap\WinPcap Web bulleted list


    • ItemC:\Documents and James Data\Microsoft\Internet bulleted list

    Explorer\Quick Launch\Arcai.comof Netcut - Defender.lnk

    • ItemC:\Documents and Settings\James\Desktop\netcutdefender Seekmo bulleted list
    • ItemC:\Documents and Settings\James\Desktop\NetcutDefender.lnk bulleted list
    • ItemC:\Documents and Settings\LocalService\Favorites\Desktop.ini bulleted list
    • ItemC:\Program Seekmo bulleted list
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\Program
    • Bulleted itemC:\WINDOWS\is-NAN8L.exe
    • Bulleted itemC:\WINDOWS\is-NAN8L.lst
    • Bulleted itemC:\WINDOWS\is-NAN8L.msg
    • ItemC:\WINDOWS\Prefetch\PRA bulleted list. EXE -
    • ItemC:\WINDOWS\Prefetch\NETCUTDEFENDER bulleted list. EXE -
    • ItemC:\WINDOWS\Prefetch\NETCUTDEFENDER bulleted list. EXE -
    • ItemC:\WINDOWS\Prefetch\NETCUTDEFENDER bulleted list. TMP -
    • ItemC:\WINDOWS\Prefetch\WINPCAP bulleted list. EXE -
    • Bulleted itemC:\WINDOWS\system32\activepacket.dll
    • Bulleted itemC:\WINDOWS\system32\actskn43.ocx
    • Bulleted itemC:\WINDOWS\system32\drivers\npf.sys
    • Bulleted itemC:\WINDOWS\system32\Packet.dll
    • Bulleted itemC:\WINDOWS\system32\pthreadVC.dll
    • Bulleted itemC:\WINDOWS\system32\wpcap.dll

    This will stop and remove netcut and the problem of redirection.
    I tested in vmware and I sent the guy who did netcut and also posted it on cnet downloads.

    No antivurs or malware program it will pick up, I think that it down to the activepacket.dll

    This guy mentions the down problem

  • Firefox does not connect to any site since the new update to download.

    Firefox does not connect to all websites since the installation of the last update. Google Chrome and Internet work.

    Some problems occurs when your Internet security program was set to trust to the
    a previous version of Firefox, but no longer recognizes your updated as version
    level of confidence. Now how do I solve the problem: to allow Firefox to connect to the Internet
    Once again;

    • Make sure your Internet security software is up-to-date (for example, you are using the latest version)
    • Delete Firefox to list your program of trusted or recognized programs, then add it again. For detailed instructions, see

    Configure the firewall so that Firefox can access the Internet. {web link}

  • Firefox will not load some sites Web but IE

    After the upgrade to 29 FF, I can't access the addons and several other pages.

    Going to or clicking the addons button gives me a bulleted links list.

    Try to download an add-on just says "download error".

    I can go to in Internet Explorer and download and install manually without any problems.

    I deleted the cache and cookies several times and reset the proxy votes to zero.

    I watched: config and there was no line xpinstall.enabled so I added it as a boolean type.

    I ran malwarebytes and it found nothing.

    Any help would be appreciated.


    The site modules use these stylesheet:

    Can load you those directly (if it just look like a bunch of text all run together), or you get an error?

    If those loading and you and then refresh the page modules, it get a style correctly?

Maybe you are looking for