Why the ointment doesn’t work, what should I do? Firefox won't start: possible problems and troubleshooting
One of the most common problems with any browser is when web pages refuse to load. Today we will take a closer look at the reasons and ways to solve the problem when the browser Mozilla Firefox does not load pages.
The inability to load web pages in the Mozilla Firefox browser is a common problem that can be affected by various factors. Below we will look at the most common ones.
Reason 1: no internet connection
The most common, but also common reason that Mozilla Firefox does not load pages.
First of all, you will need to make sure that your computer has active connection to the Internet. You can check this by trying to launch any other browser installed on your computer, and then going to any page in it.
In addition, you should check whether another program installed on the computer is taking away all the speed, for example, any torrent client that at the moment downloads files to your computer.
Reason 2: Firefox is blocked by antivirus
A slightly different reason, which may be related to the antivirus installed on your computer, which may be blocking access to the Mozilla Firefox network.
To rule out or confirm this possibility of a problem, you will need to temporarily pause your antivirus and then check if pages load in Mozilla Firefox. If, as a result of performing these steps, the browser’s operation has improved, then you will need to disable network scanning in your antivirus, which, as a rule, provokes such a problem.
Reason 3: changed connection settings
Firefox may not be able to load web pages if the browser has connected to a proxy server that is not currently responding. To check this, click on the right top corner by the browser menu button. In the menu that appears, go to the section "Settings" .
"Additional" and in the subtab "Net" in the block "Compound" click the button "Tune" .
Make sure you have the checkbox next to "No proxy" . If necessary, make the necessary changes and then save the settings.
Reason 4: add-ons do not work correctly
Some add-ons, especially those that change your real IP address, may cause Mozilla Firefox to not load pages. IN in this case The only solution is to disable or remove the add-ons that caused the problem.
To do this, click on the browser menu button, and then go to the section "Extras" .
In the left area of the window, go to the tab "Extensions" . A list of extensions installed in the browser will be displayed on the screen. Disable or remove as many add-ons as possible by clicking the corresponding button to the right of each one.
Reason 5: "DNS Prefetch" function is activated
Mozilla Firefox has this feature enabled by default. "DNS Prefetch" , which is aimed at speeding up the loading of web pages, but in some cases it can lead to crashes in the web browser.
To disable this feature, go to address bar follow the link about:config , and then in the window that appears, click on the button “I take the risk!” .
A window will appear on the screen with hidden settings, in which you will need to right-click in any free area from the parameters and in the displayed context menu go to the point “Create” – “Boolean” .
In the window that opens, you will need to enter a name for the setting. Write the following:
network.dns.disablePrefetch
Find the parameter you created and make sure it has a value set to "true" . If you see the value "false" , double-click on the parameter to change the value. Close the hidden settings window.
Reason 6: overabundance of accumulated information
During operation Mozilla browser Firefox collects information such as cache, cookies, and browsing history. Over time, if you don't pay enough attention to cleaning your browser, you may experience problems loading web pages.
Reason 7: Browser not working correctly
If none of the methods described above helped you, you may suspect that your browser is not working properly, which means the solution in this case is to reinstall Firefox.
First of all, you will need to completely remove the browser from your computer without leaving a single Firefox-related file on your computer.
And after the browser removal is complete, you will need to restart your computer and then proceed to download a fresh distribution, which you will subsequently need to run in order to install Firefox on your computer.
This article describes what to do if Firefox window did not appear after you clicked the Firefox icon.
- If you receive a message that you can ignore (for example, "TypeError: Components.classes["@ ... ;1"] is undefined", "onload error TypeError: ...", "Exc in ev handl: ...") and launch Firefox, see Troubleshoot problems with extensions, themes, and hardware acceleration to resolve common issues in Firefox.
- If Firefox starts but doesn't load any websites, read the article Websites won't load - troubleshooting and fixing errors.
Error reading configuration file
This error occurs due to problems with the software Firefox files. The solution is to uninstall Firefox and then reinstall it. (This action will not delete your passwords, bookmarks, or other user data and settings, which are stored in a separate profile folder.)
- Remove the Firefox installation directory, which is located by default in one of these locations:
- C:\ Program Files\Mozilla Firefox
- C:\Program Files (x86)\Mozilla Firefox
- Use another browser to download installation file Firefox from the Firefox download page and install it. For additional information, read the article How to download and install Firefox on Windows.
XULRunner error
If you see a message "Error - XULRunner: Platform Version
An error occurred while starting the application
This error means that either Firefox is not installed or your shortcut to it is incorrect. Make sure Firefox is installed in the location shown on the shortcut. If this is not the case, install Firefox if necessary, and then change the shortcut to point to the correct location.
Error opening file for writing...
If you receive this error when running Firefox on Windows, you may need to log in as an administrator. You can restart your computer or, if you have an administrator account, you can run the program as an administrator.
- Find program file firefox.exe in the Firefox application folder on your computer.
- Right-click on its icon.
- Select Running on behalf of.... Select Run as administrator.... Select The specified user account:. From the username dropdown menu, select Administrator or another user with administrator rights. Enter the password required to log into this account. Click the OK button.
- Firefox app launches using account Windows Administrator. The user that was used to log into Windows at startup will still remain active.
Other error messages
No error messages
If you click the Firefox icon but no Firefox windows open and no error messages appear, the first step is to restart your computer and try again. If Firefox won't start, see the following sections.
Firefox won't launch after update
- If you are using certain versions of ZoneAlarm or other Internet security software that include the Virtual Browsing feature, this may prevent Firefox from launching. Check virtualization settings and clear virtual cache if your Internet security program includes this feature, or visit the software vendor's support site for more help.
Firefox won't launch after installing add-ons
If Firefox used to work but stopped working after you installed extensions or themes, read this article
A fairly common situation: you double-clicked the Mozilla Firefox shortcut on your desktop or opened this application from the taskbar, but are faced with the fact that the browser refuses to start.
Unfortunately, the problem when the Mozilla Firefox browser refuses to launch is quite common, and its occurrence can be influenced by a variety of reasons. Today we will look at the main reasons, as well as ways to resolve problems with launching Mozilla Firefox.
Option 1: "Firefox is running and not responding"
One of the most common Firefox crash situations is when you try to launch the browser but instead get a message "Firefox is running and not responding" .
Typically, a similar problem appears after a previous incorrect closing of the browser, when it continues to execute its processes, thus preventing a new session from starting.
First of all, we will need to end all Firefox processes. To do this, press the keyboard shortcut Ctrl+Shift+Esc to open "Task Manager" .
In the window that opens, you will need to go to the tab "Processes" . Find the Firefox process (“firefox.exe”), right-click on it and select the option from the context menu that appears "Cancel task" .
If you find other processes associated with Firefox, you will need to kill them as well.
After completing these steps, try launching your browser.
If Mozilla Firefox still does not start, still giving the error “Firefox is running and not responding,” then in some cases this may indicate that you are missing necessary rights access.
To check this, you will need to get into your profile folder. It is, of course, easier to do this using Firefox itself, but given that the browser does not start, we will use another method.
Press a combination of keys on your keyboard Win+R. The Run window will appear on the screen, in which you will need to enter the following command and press Enter:
%APPDATA%\Mozilla\Firefox\Profiles\
A folder with profiles will be displayed on the screen. Typically, if you haven't created additional profiles, you will see only one folder in the window. If you use several profiles, then for each profile you will need to perform further actions individually.
Right-click on the Firefox profile and in the context menu that appears, go to "Properties" .
A window will appear on the screen in which you will need to go to the tab "General" . At the bottom of the window, make sure you have the option checked. "Read Only" . If there is no checkmark (dot) next to this item, you must set it yourself and then save the settings.
Option 2: “Error reading configuration file”
If the message appears on the screen after you try to launch Firefox "Read error configuration file» , then this means that there is a problem with the Firefox files, and the easiest way to solve the problem is to reinstall Mozilla Firefox.
First of all, you will need to completely remove Firefox from your computer. We have already talked about how this task can be accomplished in one of our articles.
Open Windows Explorer and delete the following folders:
C:\Program Files\Mozilla Firefox
C:\Program Files (x86)\Mozilla Firefox
And only after you complete Firefox removal, you can start downloading the new version from the official website of the developer.
Option 3: “Error opening file for writing”
An error of this type is usually displayed in cases where you use account without administrator rights.
Accordingly, in order to solve the problem, you need to obtain administrator rights, but this can be done specifically for the application being launched.
Just right-click on the Firefox shortcut on your desktop and in the context menu that appears, click on "Run as administrator" .
A window will appear on the screen in which you will need to select an account that has administrator rights, and then enter its password.
Option 4: “Your Firefox profile could not be loaded. It may be damaged or inaccessible."
An error like this clearly hints to us that there are problems with the profile, for example, it is inaccessible or completely absent on the computer.
Typically, a similar problem occurs if you have renamed, moved, or even deleted the Firefox profile folder.
Based on this, you have several ways to solve the problem:
1. Move the profile to its original location if you have moved it before;
2. If you renamed the profile, then you need to give it the same name;
3. If you cannot use the first two methods, then you will need to create new profile. Please note that by creating a new profile, you will get a clean Firefox.
To start creating a new profile, open the “Run” window using the keyboard shortcut Win+R . In this window you will need to run the following command:
firefox.exe -P
A control window will appear on the screen Firefox profiles. We will need to resort to creating a new profile, so click on the button "Create" .
Enter a name for the profile, and, if necessary, in the same window, specify the location on the computer where the folder with the profile will be stored. Finish creating your profile.
The Firefox profile management window will reappear on the screen, in which you will need to highlight the new profile and then click on the button "Starting Firefox" .
Option 5: Error saying Firefox has crashed
A similar problem appears when you launch the browser. You may even see its window appear, but suddenly the application closes and a message indicating that Firefox has crashed is displayed on the screen.
In this case, Firefox can crash due to various factors: viruses, installed add-ons, themes, etc.
First of all, in this case you will need to scan using your antivirus or a special cleaning utility, for example, Dr.Web CureIt.
After performing the scan, be sure to restart your computer and then check the functionality of your browser.
If the problem persists, then you should try complete reinstallation browser, after completely removing the web browser from the computer.
After the uninstallation is complete, you can begin installing the latest version of the browser from the developer’s official website.
Option 6: "XULRunner Error"
If you see the “XULRunner Error” error on your screen when you try to launch Firefox, this may indicate that you have an outdated version of Firefox installed on your computer.
You will need to completely remove Firefox from your computer, which we have already talked about on our website.
After completion complete removal download the browser from your computer new version web browser from the official website of the developer.
Option 7: Mozila does not open, but does not display an error
1) If the browser was working fine before, but at some point stopped starting, the most effective way To fix the problem is to perform a system restore.
This procedure will restore the system to the time when the browser was working correctly. The only thing is this procedure will leave - this user files(documents, music, photos and videos).
To start the system rollback process, open the menu "Control Panel" , set the top right corner to view mode "Small Signs" and then open the section "Recovery" .
In the window that opens, select "Run System Restore" and wait a few moments.
Select a suitable rollback point to when Firefox was working fine. Please note that depending on changes made since then, system recovery may take several minutes or several hours.
2) Some antivirus products may cause problems with Firefox. Try pausing them and checking if Firefox is working.
If, according to the results of the scan, the cause was an antivirus or other protection program, you will need to disable the function network scanning or other function related to browser or network access.
3) Try running Firefox in safe mode. To do this, press Shift key and click on the browser shortcut.
If the browser starts normally, then this indicates a conflict between the browser and installed extensions, themes, etc.
First, disable all browser add-ons. To do this, click on the menu button in the upper right corner, and then in the window that appears, go to the section "Extras" .
In the left pane, go to the tab "Extensions" , and then disable all extensions. It would be useful if you completely delete them from the browser.
If you have installed third party themes for Firefox, try reverting to the default theme. To do this, go to the tab « Appearance» and make a theme "Standard" default theme.
And finally, try disabling hardware acceleration. To do this, open the browser menu and go to the section "Settings" .
In the left pane of the window, go to the tab "Additional" and then open the subtab "General" . Here you will need to uncheck the box “Use hardware acceleration whenever possible” .
After completing all the steps, open the browser menu and click on the icon in the lower area of the window "Exit" . Try launching your browser normally.
4) Reinstall your browser and create a new profile. How to accomplish this task has already been discussed above.
And a small conclusion. Today we looked at the main ways to fix problems starting the Mozilla Firefox browser. If you have your own method for fixing the problem, share it in the comments.
After prolonged operation or immediately after downloading from the network, mozilla program Firefox refuses to start at normal operating speed and does not start at all. There can be many reasons for such a reaction, and in order to effectively troubleshoot problems, it is worth taking a closer look at their true nature.
Browser not working
Fast and feature-rich system element Mozilla is installed on many mobile and computer devices. Reviews of its work are almost always positive, but often netizens complain about problems with the launch.
Almost always the system does not open after a long period of service or Yandex refuses to load, and each problematic situation of this type has its own explanation. The most common faults that cause such a problematic situation are worth reviewing now.
Reasons for the program's lack of response
When asked why the Mozilla program does not work, people cannot give a definite answer, because not everyone is well acquainted with modern technological features and processes. There are several possible options development of situations in which Yandex or Mozilla Firefox cannot start on the device being used. The most common characteristics of this level are:
- absence timely updates extensions;
- the presence of viruses inside the gadget used;
- random process forced closure content component;
- system failures, both in terms of software operation and inside the technical device;
- The installed version of Firefox is not compatible with a specific PC or mobile gadget.
The system refuses to open at all or, in some cases, starts and then immediately closes when entering Yandex or another site. Problems and failures often occur after restart multimedia device, long work on the network, opening multiple browsers together, programs that interfere with the normal functionality of other extensions.
Possible solutions to the problem
If an opening system element hangs so badly that it is completely impossible to cooperate productively with it, you should not try to bring it to life, but rather look for productive methods to resolve such a serious problem.
To open and use the specified system support As quickly as possible, and with high quality, it is worth trying to perform the following resuscitation actions:
One of these tips should help you open the system, go to the Yandex search engine and use Mozilla effectively.
After a crash, or installation of unknown plugins, and sometimes for unknown reasons, Firefox does not start or does so for a very long time. Clicking on the browser icon does nothing other than make it bounce. Unfortunately, this is the first sign of a damaged profile. And even if you change your browser to existing version, this will not save you - the profile is stored separately.
Manifestations of incorrect Firefox operation and ways to eliminate them.
In addition to the fact that Firefox takes a long time to load, the incorrect operation of the browser is manifested in its freezing, slow loading and display of pages, the distorted state of opening windows or the presence of hieroglyphs in them.
To start the browser in safe mode and eliminate the above problems, you can follow one of the following paths:
- and thus try to find and disable the latest installed extensions, themes or plugins that led to the crash;
- create a new profile;
- reinstall the browser.
Safe Mode for Mozilla Firefox?
To the surprise of advanced users, Firefox can be loaded in Safe Mode. This is done by launching the browser in any way available to you, while holding down the Shift key. A window to enter safe mode will appear.
When running in safe mode, all extensions are disabled and the default theme is used. You need to follow the path “Tools”, “Add-ons”, review the “Extension”, “Themes”, “Plugins” tabs, try to detect the latest crashed changes in the browser and disable them.
If you doubt your actions, you can disable the plugins one by one and thus check the functionality of the browser.
Let's create a new profile.
Creating a new profile means the default settings are present, without any installed plugins. To create a profile, click “Start”, “Run”. To enter the path to the browser location directory, use the “Browse” button.
In the explorer that appears, look for installed program. If you did not change the installation path, then it lies on drive C, the “Program Files” folder, in it “Mozilla Firefox”, and inside you will see the familiar browser launch icon. Stand on it and click "Open". The path you have taken will be displayed in the “Open” field. Change it to:
“C:\Program Files\Mozilla Firefox\firefox.exe” –p (add p at the end separated by a space).
Click “Ok” and you will be able to create a new profile. Remember that it is completely empty, all settings will have to be made from scratch.
If all else fails...
All that remains is to reinstall the browser. Naturally, before this you need to uninstall the old, corrupted version.
And so that the insurance doesn’t let you down!
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