TVs. Consoles. Projectors and accessories. Technologies. Digital TV

Pages do not open in mozilla firefox browser. What to do if pages do not open in Mozilla Firefox? Pages won't load in mozilla browser

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 Mozilla element 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:

  • lack of timely update of the extension;
  • the presence of viruses inside the gadget used;
  • an accidental process of forced closure of a content component;
  • system failures, both in terms of work software, and inside a 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 crashes often occur precisely after restarting a multimedia device, long-term work on the network, opening several browsers together, or programs that interfere with the normal functional operation 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.

Hello! Why won't it start? Due to my profession, I often hear this question regarding different browsers. In fact, the reason may lie directly in their functioning or operating system.

Today we’ll look at why Mazila won’t start and what can be done about it. I will share some experience, which in many cases allows me to find and correct the situation for the better.

The result was a decent amount of material. Therefore, for your convenience, I have prepared a brief summary.

Sometimes the browser starts to work slowly or does not load at all for obvious reasons - the problem is not only in it, but also in the installed operating system (OS). Let's see what can be done.

Checking browser and OS compatibility

The latest version of the Internet browser does not work in all versions of the operating system Windows systems. In particular, I came across information that software product not supported on XP below SP2.

But in Windows 7 with latest updates and XP SP3 Firefox works fine. I checked it myself recently.

What to do in in this case? It's simple - check the compatibility of your browser and OS. Minimum system requirements I’m not citing it now, since by the time you read this material the situation may change. It is advisable to check current information at official resources.

Checking your computer for viruses

A common case is that a virus damages or modifies files. At the same time, the probable consequences are that both the browser and all other components of the system load slowly.

To exclude or confirm this assumption, you need to do a full scan of the computer. When a virus is detected, it is not enough to just remove it; you also need to correct the consequences of its activity. To conduct thorough computer checks for infection, I like to use Kaspersky antivirus. Naturally, the choice of antivirus software is the decision of each user.

We look for and fix errors in the OS

There are thousands of options here. However, I will show one general check and correct some errors automatically. It helps in some cases when problems are related to system processes on your hard drive. It helps me in my work quite often, but I repeat - there are different cases.

Pay attention to the screenshot below. The example was made in XP, but it also works in Windows 7.

The command shown in the screenshot must be entered into command line- a program that is standard for Windows. A search will be performed bad sectors, as well as restoring their contents for the specified disk. It is advisable to check all disks.

Updating the browser and OS

Updates are released for a reason. They may contain changed or added functionality and important fixes. It is logical that they need to be installed in a timely manner.

It’s worth doing this at least for security reasons, if the modified functionality is of little interest. In addition, some updates may directly affect the stability of the system.

Working with browser files to troubleshoot problems

General recommendations were considered. Let's say the system is fine, but Mazila Firefox does not want to start normally. Why is this happening? Now I’ll show you 3 more different approaches on how to correct the situation.

We work with the task manager if a single launch was observed

It happens that the browser can be opened once after loading the computer. If you close it completely, then it will not start a second time. The reasons for this may be different.

In some cases, the process simply does not complete, although the browser is no longer visually visible. The solution here is simple. Open the task manager using the keyboard shortcut Ctrl, Alt, Del.

If you see processes with the demonstrated name, they need to be terminated. Their presence means that the browser was not closed completely.

After performing these steps, it is highly likely to open normally. If a similar situation repeats, then it is worth considering other ways to solve the problem.

Clear the browser cache if it starts and works poorly

A cache is a collection of data that is stored while browsing the Internet. These include, for example, browsing history. If crashes occur while Firefox is running, everything takes a long time to load, and in some other cases it would be wise to clear the cache. Complete cleaning can be done in a couple of steps:

  1. Removing web content and user data;
  2. Clearing the log.

As part of the first stage, go to “settings”, select the “additional” section and click on the appropriate buttons.

It happens that the above options do not help. Let's see what else can be done.

We reinstall the Internet browser and clean the profile

We completely remove the current browser through the system tools in “Add or Remove Programs”. Reboot the computer.

Open any folder and enter special words in the address bar and press “enter”.

I don’t remember how it works in other OSes, but this approach works in XP and 7. So, after performing the above action, a list of folders will open. Among them we are looking for the name "Mozilla". The folder can be deleted.

Why does Mazila load slowly and how to speed it up?

I talk about this in last resort, so the reasons may lie in incorrect operation:

  • programs that affect the functioning of the browser;
  • the browser itself.

Some ways to solve the problem were given above. If the problem is not these two points, then what else is it and what should we do then? In this case, the browser takes a long time to load and opens pages slowly for a logical reason - lack of hardware power. Simply put, this occurs when the computer is weak.

Additional information

The article turned out to be quite lengthy. I tried to remember as many situations as possible from my experience and observations. Let me draw your attention to the fact that problems may be of a different nature and require individual approaches, which may go beyond the scope of the options considered.

All kinds of programs and their interaction - all this forms a rather complex system. There are a huge number of causes of malfunctions and their solutions.

I am finishing the article. I hope it was helpful. I look forward to your comments.

By the way, you may have already noticed that the blog actively discusses topics of normal and... These are the main topics. Right now you can learn about really promising ways to make money online.

I continue to prepare new publications. If you wish, you can subscribe to e-mail or track announcements of new materials in social networks, where I periodically add them. See you later.

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 Mozilla Firefox browser 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 an active internet connection. 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 up all the speed, for example, any torrent client that is currently downloading files to the 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 it in your antivirus network scanning, which, as a rule, provokes the occurrence of 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 responding at the moment. 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 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 delete maximum quantity additions by clicking on the corresponding button to the right of each.

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, follow the link in the address bar 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

As the browser operates, Mozilla Firefox accumulates 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: the browser is 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 Firefox program 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.)

  1. 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
  2. Use another browser to download the Firefox installation file from Firefox downloads 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 is not compatible with minimum version"(" " depends on the version number) After updating the software, use a different browser to download the Firefox installer from the Firefox download page, save it to your desktop or somewhere else, delete the Firefox installation directory, and then reinstall Firefoxreinstall Firefoxreinstall Firefox.

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.

  1. Find program file firefox.exe in the Firefox application folder on your computer.
  2. Right-click on its icon.
  3. 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.
  4. 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 your virtualization settings and clear the virtual cache if your Internet security software includes this feature, or visit your software vendor's support site for more help.

Firefox won't launch after installing add-ons

If Firefox previously worked but stopped working after you installed extensions or themes, read this article

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 switch your browser to the 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 launch the browser in safe mode To resolve 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 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!

We understand your disappointment if all settings collapse! But! After all, you can create archive copies and use them perfectly to “roll back” to a certain date in case of failures, or “roll forward” to a newly installed crystal clear program!

MozBackup is a great utility for these purposes. Restores your browser's saved settings. MozBackup will also be indispensable when reinstalling the operating system, and when moving to another computer. All your settings will return to you in full! Install and use - MozBackup will not let you down!

It is difficult to imagine a modern user who would not work with Internet browsers. These utilities help you go online and browse websites. Through them, files and other data are downloaded. The variety of Internet browsers is surprising. A utility called Mozilla Firefox is in great demand. This application is not immune to crashes and problems. Sometimes it turns out that Firefox does not start. What to do under such circumstances? What can lead to disruption of the Internet browser? How to make the browser work? We will try to answer all these questions further. As a rule, a browser failure to function normally is not critical for the operating system. Only information stored in the Internet browser may be affected.

No answer

Doesn't start? This problem is not that rare. It can cause a lot of problems for the user.

Sometimes it happens that the browser starts and does not respond. The application stops responding to user commands. What should I do?

Typically, this situation occurs if the Internet browser was completed incorrectly during the previous session. Or Firefox does not start and freezes due to an operating system failure.

  1. Press Ctrl + Alt + Del on your keyboard.
  2. Select the "Task Manager" line in the window that appears.
  3. Open the "Processes" tab.
  4. Select "Mozilla" and click on the "End process" button.

Access rights

Why won't Firefox launch? The reasons for this phenomenon may be different. Therefore, we will consider only the most common scenarios.

Is Mozilla running and not responding? This situation is sometimes caused by a lack of access rights to applications.

Firefox won't start? Hangs in processes and does not respond? You can try to get access rights to the utility. To do this you will need:

  1. Press Win + R, or open Start and place the cursor in the search bar.
  2. Write the address in the line that appears. It is listed under the manual.
  3. Right-click on the folder with the profile name "Mozillas" and select the "Properties" section.
  4. Open the "General" block and uncheck the "Read-only" attribute.
  5. Save changes.

As soon as the adjustments take effect, you can launch the Internet browser. The problem with the work of Mozilla should disappear.

Address to go to root folder Firefox looks like this:

%APPDATA%\Mozilla\Firefox\Profiles\.

Configuration errors

Firefox won't start? If, when you try to work with the application, a browser configuration error message appears on the screen, this means that the problem lies in the Mozilla files. Such failures occur for various reasons.

What to do? It is best to reinstall the application. Users typically act based on with the following instructions:

  1. Find using any Internet browser latest version"Mozilla" and download it to your computer.
  2. Go to “Start” - “Control Panel” - “Uninstall programs”.
  3. Select "Mozilla" in the menu that appears and click on the "Delete" operation.
  4. Follow the instructions of the "Uninstallation Wizard".
  5. Launch installation file Firefox.
  6. Complete the installation of the application by following the prompts on the monitor display.

Important: when deleting the old version of the Internet browser, it is better to give preference to complete uninstallation. All saved tabs, passwords and addresses will have to be erased from the OS.

Errors reading files to write

Why won't Mozilla Firefox launch? There is no clear answer to such a question. The browser is an application that can stop working for many reasons.

Sometimes when you launch the Internet browser, an error reading a file to write appears on the screen. This situation is not common. It involves using an account without administrator rights.

To get Mozilla working, you will either have to change your account or act like this:

  1. Right-click on the Firefox shortcut.
  2. Select the "Run as administrator" operation.
  3. Click "Ok" or "Run".

Now we just have to wait a little. After a few seconds, the Internet browser should start. From now on you can work with him. If the error repeats, you will have to use the above instructions.

Error loading profile

Firefox won't start? On the monitor display does the user see a message about an error loading the utility profile?

A similar problem occurs if the Internet browser account is damaged or completely missing from the operating system. This occurs either as a result viral infection PC, or through user actions. Renaming folders and making adjustments to files in the corresponding ones results in a download error.

The situation can be corrected in different ways. Here are the most common tips that will help you cope with the task:

  1. Restore the profile to the Mozilla root folder.
  2. Return the profile to its original name if it has been changed.
  3. Create new account. In this case, the user will receive a "clean" Firefox.
  4. Scan your computer for viruses and remove all malicious files.

If such manipulations do not help, the surest, fastest and most reliable solution is to reinstall the Internet browser. We have already talked about how to carry it out.

How to create a profile

A few words about how you can create a new account in Mozilla Firefox. Not every user knows about this technique.

To create a “clean” Mozilla profile you will need:

  1. Open a command prompt and write Firefox.exe -P.
  2. Click on "Run" or Enter.
  3. Select the "Create..." command.
  4. Give the new profile a name.
  5. Select a location to save the data.
  6. Select the created account in the window that appears and click on “Launch Firefox”.

It's done. When you start Mozilla, a “clean” profile will be used. Nothing difficult or unclear! Even a novice PC user can cope with the task!

Browser crash

Mozilla Firefox won't start? As you can already see, users are faced with a variety of Internet browser errors. Depending on the message displayed on the screen, the further algorithm of actions will change.

Quite often, users see warnings about the fall of Mozilla. They are called "crashes". As a rule, in this case, the browser processes slow down, after which the utility stops responding to user actions. After a while, the browser closes and a “crash” message appears on the screen.

The error can be caused by anything - from a system failure to a virus infection of the PC. If problems appear immediately after installing Mozilla, you can suspect incorrect installation programs.

What to do? You can correct the situation if you find out the cause of the problems. Here are the most effective techniques for dealing with crashes:

  1. Reinstall Mozilla Firefox after performing complete removal programs.
  2. Scan your computer for viruses and spyware. To do this, you will need any antivirus (Kaspersky, Avast, NOD32 and others) and SpyHunter 4. If dangerous objects are detected, they must be disinfected or removed from the operating system.

As a rule, all of the above techniques allow you to quickly get your Internet browser working. The tips presented to your attention are suitable for all browsers.

Old version

Why won't Firefox launch? Another problem that PC users face is the XULRunner type error. Fortunately, it is becoming less and less common.

A message like this indicates that you are using an outdated version of the Internet browser. You can get Mozilla to work only by updating the corresponding utility.

Important: you need to download installation files only from the official Mozilla pages Firefox. This technique will save you from many problems and failures in the future.

No messages

Does Firefox take a long time to start? This often happens when the processor is busy. Worth completing a few background programs as the computer starts to work faster. And the browser too.

Unfortunately, it increasingly happens that a user opens Firefox, but sees nothing in response - no error messages, no utility crashes, or any other system responses.

What should I do? Can:

  1. Reinstall the browser, first removing it from the computer completely.
  2. Restore the system. To do this, you need to open "Start" - "All Programs" - "Accessories" - "System Tools" - "Recovery", and then follow the instructions on the screen.
  3. Disable antivirus and other OS protection tools.
  4. Launch Firefox in safe mode. To do this, press Shift and double-click on the browser shortcut.

That's it. Firefox won't start? We got acquainted with the most common mistakes and ways to solve them.

When the browser is activated, the console starts Firefox browser? You need to click on the cross in the corresponding window. To re-launch the console, just hold down Ctrl + Shift + I.

Updated: 10/31/2019. Firefox 70.0.1 update has been published, which resolves an issue that causes some pages to crash when opening or loading using JavaScript. individual elements on the page (including YouTube and Facebook). The problem was due to content corruption in the new LocalStorage implementation (NextGen), so we rolled back to the old LocalStorage implementation (dom.storage.next_gen=false in about:config).

Mozilla acknowledged the bug and included it in the list known issues with the description: "Some websites or elements using dynamic JavaScript may not load."

In the release notes, Mozilla provided a workaround for this issue in a separate article. The article reports that dynamic JavaScript is used, among other things, on the sites of the social network Facebook and video hosting YouTube. Mozilla has even created a separate test page that allows you to find out whether you are using an affected version of Firefox or not.

If the status returned is "Good: Totally Working", then your version of Firefox is not affected by the problem. Any other status, for example "investigating. If this doesn't go away, things are unexpectedly broken" indicates that your browser is affected and you can use a workaround.

A report on Bugzilla states that this problem relevant only for old profiles. The bug appears to be related to the new storage implementation in Firefox 70, which Mozilla calls LSNG (Local Storage Next Generation).

You can fix the problem as follows:

  • Open the page about:config in Firefox.
  • Click the button I take the risk!.
  • Find the parameter dom.storage.next_gen.
  • Set it to a value False by double-clicking the option.

Then simply reload the problematic web page. Everything should work correctly. As alternative solution You can create a new user profile and use it instead of your old profile.

If this problem does not affect you, you do not need to do anything. Mozilla hasn't yet said when the issue will be fixed, but given the scale of the problem (affecting a large number of profiles and being seen on popular sites), a corrective update should arrive soon.

Have you noticed problems with loading web elements in ?

Many users, including me, have encountered this common problem fox browser, like bookmarks that don't open. It consists in the fact that when you click on the “+” button, a new bookmark does not open. Restarting the browser, as a rule, does not give any results, but there is still a way out of the situation when bookmarks do not open in Mozilla.

There are several scenarios for troubleshooting - quick and long. And now I will tell you about them in order.

Quick option

The most effective solution, which is usually used to restore FireFox to a working state, is to roll it back to its original state. This function is a built-in browser feature and is performed in just a few clicks.

  1. All installed add-ons will be disabled.
  2. The user profile will be created anew, and all settings from the previous profile will be transferred to a special folder, so in fact you will not lose any saved sites in your favorites or any other information.

But any changes made to the browser itself (which is probably why bookmarks don't open in Mozilla Firefox) will be undone.

So, in order to return the browser to its original state, you will need:

  1. Launch it.
  2. Open the main menu by clicking the button on the right side of the toolbar.
  3. Click on the icon with a question mark.
  4. Select the item “Information for solving problems”.

On the page that opens, you just need to click on the “Clear FireFox” button and confirm the action being performed. The browser will close and open again after a while in its standard state - as if it had just been reinstalled.

Important! Once the cleanup is done, check the contents of your desktop. A folder should appear on it where all the information from the previous profile will be stored - after all, it would be bad if, due to the fact that you do not open bookmarks in Mozilla Firefox, important data and saved links are lost.

Long option

To fix your problem with the second method, you will not need to return the browser to standard settings. Here you will need to arm yourself with patience and do the same procedure several times.

Judging by the experience of Firefox users, the problem may be caused by some installed extension (you can read more about removing plugins). Therefore, if you cannot open bookmarks in Mozilla, you will need:

  1. Launch browser.
  2. Open the main menu of the browser and go to the “add-ons” section.
  3. Open the “Extensions” tab and start turning off each of the applications you have installed one by one, restarting the browser and checking the functionality of opening bookmarks.

Advice! First of all, pay attention to extensions that make changes to the browser toolbar. All kinds of other publishers should be checked first.

After the procedures have been completed (it does not matter which of the two described paths you decide to take), the opening function new page should work fine. I hope this article was useful to you, and in the future you will keep an eye on what extensions are installed in your browser!

In absolutely any program, even the most ideal one, sometimes failures occur. They may be associated with various reasons. And Mozilla is no exception to the rule. It can also experience interruptions, errors and bugs. Users are constantly tormented by the question - “So how to fix these errors?” We will try to answer this as clearly and clearly as possible.

We will look at the most common errors that the system throws when the browser crashes. And if Mozilla Firefox does not work, then you need to very carefully study what kind of error is thrown in order to remove it.

Does not work or does not start Mozilla: What to do?

We will try to help resolve your problem so it never comes back. But first you need to understand why it happens. So let's look at the most common Mozilla errors.

When I click on the shortcut, the browser does not open

It is difficult to explain why this happens, that previously Firefox opened normally and without any problems, but at some point it stopped responding and does not start at all. The reason may be corrupted files, viruses and even system failures.

Let's try to fix this problem:

Option 1. Try restarting your computer. In some cases, this helps and performance is restored. If you have already tried this option and it did not work, follow the following instructions.

Option 2. You can try to roll back the data to more early version (this opportunity available on Windows 7 and above later versions). In most cases, this turns out to be effective and helps with such an error. How to do it:


  • Select a restore point and carry out this operation.
  • After the data has been rolled back, restart your computer and try logging into Firefox again.

Option 3. The antivirus is blocking the browser. Try disabling your security system for a while and launching your browser. If it starts, then you will need to disable the network scanning system for Mozilla to work normally. But be aware that this may increase the risk of your computer becoming infected with malware.

Option 4. You should try opening Firefox in safe mode. And if the browser starts normally in it, then the problem is something installed extensions and additions. In this case, while in this mode, try disabling all extensions and plugins. And if later you start in normal mode without any problems, then simply find and remove the extension that prevents the program from starting.

Browser is not responding

Probably the most common error that users may encounter. Very often it may happen that when using a program, it suddenly freezes and does not respond to anything, and in the browser title it writes: “Not responding.” Let's figure out how to fix this error.

The task manager will help us here:


Of course, all data will be lost and the tabs will be closed, but they can be restored by clicking the restore button that appears in the browser during emergency program closures.

IfFirefox still doesn't respond:

Then this may mean that there are certain problems with access rights to the program.


Now try opening your browser again, it should work. If not, then only a complete reinstallation will help.

Very slow when working

A similar problem occurs in several cases. Bad technical specifications computer, system overload, a lot of garbage in the form of history, cookies and cache, as well as malware.

  1. In the first case, everything is clear. You need to either acquire a more powerful computer, or minimize the amount of RAM and processor memory consumed by reducing running processes. In simple words, just remove all unnecessary and almost unnecessary programs which take up too much RAM.
  2. In the second case, the Mozilla browser may glitch if you have too many tabs running and different programs. Moreover, this can happen even on a computer stuffed with cool components. What to do in this case:

— Close all programs that consume a lot of RAM.

— Free up more memory by removing some unnecessary processes.

— Clean the registry and temporary files using CCleaner.

  1. The reason may also be a large amount of garbage that has accumulated over the entire time you have been working in a web browser. Then you need to do the following:

Well, the problem with viruses is solved, I think it’s clear how. Install any antivirus (if it is not already installed). Run a scan of your entire computer for viruses. And if, upon completion of the scan, the program detects them, delete them. After which you need to restart the system and you can try to launch the browser.

Profile error in Mozilla Firefox

As a rule, such an error indicates that the profile in the browser has been damaged, moved, or completely deleted. You can try to restore the data, but it will be easier to create a new profile.

How to do it:


The most universal way is to reinstall;)

If you have tried everything listed above, but your problem has not been solved, or you have a completely different error for which you did not find a solution in this article, then in this case the ideal option would be to completely reinstall the Mozilla Firefox program. Read the article -. The whole process and all the subtleties of removing and installing the browser are described in detail there.



Related publications