How to fix an insecure connection in Mozilla Firefox. What to do if Firefox says "Your connection is not secure"
Read also
Hi all! Sometimes when surfing in global network a warning appears in the browser " Your connection is not secure and attackers may be trying to steal your data...". If this error appears in your browser, don't worry, it's not a hacker attack, it's just a problem with the certificate of a certain resource or resources. In most cases, such a warning appears due to failures in the client hardware, and not in the server part.
Below we will look at the causes of the error "Your connection is not secure ..." and how to fix them. By the way, such a window can pop up only in browsers created on the Chromium engine by Google. The most famous browsers on this engine: Google Chrome, Orbitum, Opera, Yandex.Browser, Epic Browser, Titan Browser, Sputnik, Amigo, etc. So, let's find out with you what can lead to the above error and how you can fix it.
1. System time shows wrong
If you see the error code Net::ERR_CERT_DATE_INVALID, then this indicates that the computer displays the wrong time. To fix, you need to adjust the system time. On the clock on the right side of the taskbar, right-click and select "Set date and time."
Next, click "Change time and date" and change the time, date and year. Now it remains to save the changes and open the same site, where an error about a secure connection pops up. If you often lose time, then, for sure, the problem is a dead CR2032 battery, which is located on motherboard. If it sits down, every time the computer is turned on, the CMOS parameters are reset and sometimes you need to press the F1 key when the message "Press F1 to continue, DEL to enter setup" is displayed. After replacing the battery, set the correct time and the problem will be solved.
2. Extensions that can block websites
After installing some antiviruses on the computer additional extensions embedded in the browser for maximum protection against malware. These extensions may also cause the error "Your connection is not secure and attackers may be trying to steal your data." These extensions are usually installed with Avast antiviruses, Kaspersky Antivirus, etc. If an error with certificates often appears, you can disable such an extension in the browser.To disable the extension in Google Chrome, go to Menu - "Additional Tools" - "Extensions".
Next, we look for the module of our antivirus and then disable it by unchecking the corresponding checkbox. Restart the browser and check the site again.
3. Outdated or unverified certificate
If the site uses a certificate that is not verified by the publisher, then a similar error may also appear. It will not be difficult for the administration of any resource to create a certificate, however, if there is no data, then naturally Chrome starts to issue a warning “ Your connection is not secure". Most browsers necessarily check for the presence of a certificate, and if this is the problem, then simply click on the “Advanced” - “Go to the site” item.
4. The problem is in the browser itself
If all else fails, as an option, you can reinstall completely Google browser Chrome. This method has helped many, so I could not recommend it to you. The reinstallation process is very simple. First, you need to remove current version your browser. To do this, go to the Control Panel.
Here we select the "Programs and Features" section.
Next, find the Chrome browser in the list and click "Delete".
After complete removal browser, restart the computer, download it on the official Chrome page and install it. After such actions, in most cases, the “connection is not secure” warning will no longer bother you.
5. Outdated version of the Windows operating system
If you are the owner old Windows XP, then you should not be surprised about the appearance of various errors. Many developers have long refused to support their Windows programs XP, including Google. If you have SP2 installed, then I advise you to upgrade your system to SP3. This is for those who fell in love with Windows XP and can't let it go. For everyone else, I recommend installing Windows 7 or Windows 10 in general, friends, you need to keep up with the times.All of the above methods are aimed at ensuring that the “Your connection is not secure” error no longer bothers you. Thank you for your attention!
When Firefox requests web pages over a secure network protocol HTTPS, it pre-requests the site for a security certificate. And then it analyzes it for compliance with all established security requirements: expiration dates, registration, verification (whether it is a fake). If Mozilla successfully checks the secure connection, the web page in the tab is loaded. But if the web browser determines that something is wrong with the connection, it blocks access and warns the user about a problem with the connection.
So how do you fix your connection in Firefox if it's not secure? Let us consider in detail the various options for solving this problem.
An error has occurred - what to do (first steps)
If a notification about an insecure connection appears (FF "writes" an error), do not rush to change browser options, disable / connect the Internet, and perform any other drastic actions.
- Notify site owners that access is denied due to errors in the HTTPS certificate.
- If you have a connection problem on your site, you will ask for clarification in service center, in which the certificate was registered.
- Wait a bit. Perhaps the error will go away. Refresh the page, restart Firefox.
- If the site is unfamiliar, try to find its analogue on the Web in accordance with your tasks (information, purchases, provision of services).
- If you plan to transfer confidential information through a “problem” web resource, carry out monetary transactions, refuse this idea in principle until the problem is successfully fixed.
- The warning can be ignored: through the “Advanced” option, you still go to the blocked website. However, this approach comes with risks. The PC system can be attacked by a virus, your credentials, payment details, etc. can be stolen from you. It is highly not recommended to use it.
Common mistakes and their solutions
To find out the cause of the problem, click "Advanced" on the notification tab. Next, proceed depending on which error code the browser reports.
Date mismatch
Errors SEC_ERROR_EXPIRED_ISSUER_... (... will not be valid until...), SEC_ERROR_EXPIRED_... (... time expired) may occur due to incorrect time and date settings in the system. Click in the tray on the electronic dial once with the left button, or in the Control Panel open the “Clock, language and region” section. Check the year, month, day, time, if necessary, set the correct values on the calendar and in hours. Try to reload the page.
Note. This problem can also occur when you try to query trusted sites. For example, the Yandex search engine, Youtube video hosting, etc.
No trust
SEC_ERROR_UNKNOW_ISSUER - FF cannot identify the certificate chain, or the server cannot send the required data to verify the protocol.
This problem usually occurs because the antivirus programs, for example, Kaspersky (Kaspersky), the SSL scanning option is enabled, which performs incorrect filtering, blocking network packets. Try to deactivate it.
Note. If you do not know how to disable scanning of secure SSL traffic, read the antivirus user manual or contact technical support on the developer's website.
The second reason for this error- use of self-signed certificates (not officially registered). They encrypt the connection, but do not provide the browser with information about the final recipient of user data. This kind of blocking can be bypassed at will.
Other site license
SSL_ERROR_BAD_CERT - the certificate of another site is used; valid, but only for another domain or group of domains.
With this error, the connection is still secure, but there is no guarantee that the request and data will be delivered to the destination site, the address of which is displayed in the web browser bar.
However, there are separate situations when the protocol is configured for a different part of the same site. For example, it works correctly for the domain version WWW.website.com, but the request for the URL website.com (without "www") is blocked due to an error.
Corrupted certificate file
Check the loading of the problem page, site in another browser (Yandex, Google Chrome). If there are no errors, then it can be assumed that the Firefox certificate store is corrupted. Correction of its contents is possible only by deleting and then automatic recovery while reloading the web browser.
If you don't know how to remove storage, follow this instruction:
1. Click in the window firefox button"Menu".
2. In the drop-down block, click the "question mark".
3. In the submenu, click on the item "Information for solving the problem".
4. On the technical data tab, click the "Open Folder" button.
5. Remove the storage: in the browser directory, right-click on the cert8 file, run the "Delete" operation.
6. Restart Firefox.
All! Now you know how to establish a correct connection using the HTTPS protocol, how to analyze connection errors. Happy and safe web surfing!
There are 3 options:
1. Perhaps you haven't indexed the database for a long time. When new data is entered, the speed of the database gradually slows down. This is especially noticeable when taking a large number district data in the region. In this case, you need to open the "Administration - Database" section, open the "Database" tab and click the "Indexation" button.
2. Switch to the "online" operating mode. In this case, the main data processing will be performed on the server, and the district computers will only display the data, and the requirements for them will be significantly reduced. You can see the difference in requirements when working "with data exchange" and in "online" mode in Technical requirements Gostekhnadzor Expert.
3. Continue to work in the "with data exchange" mode, but enable the "Do not transfer operations to districts" option. In this case, data will not be transmitted to the regions. Due to this, the work of district computers will be significantly accelerated, but the “punching” of cars on the registration base of other districts will become inaccessible.
Most likely, you have an English version of Windows with Russification installed (this is especially true for unlicensed versions of Windows XP). In this case, it is necessary to install the English version of the database server. The installation procedure is described in the relevant section of the installation manual.
English version SQL Server can be downloaded from our website.
On computer #1, copy the Database folder from the Gostekhnadzor Expert folder to removable media.
Install the Gostekhnadzor Expert program on computer No. 2 according to the instructions on new computer, restart your computer.
On computer #2, copy the Database folder from the removable media to the Gostekhnadzor Expert folder.
To fix this error, you need to configure access rights to system folder SQL Server. To do this, in the section ‘ Software Gostekhnadzor Expert’ download ‘Manual for setting rights for SQL settings Server 2008 R2 on Window XP'. If this does not help, then you need to download SQL Server 2005 from http://www.microsoft.com/en-us/download/details.aspx?id=21844 and install it (install according to ). Need to download English version. Then download the upgrade from SQL Server 2005 to SQL Server 2008 R2 for Windows XP SP2. To do this, download the update from http://www.microsoft.com/en-us/download/details.aspx?id=30438 . You need to download the English version of the update (SQLEXPR_x86_ENU.exe).
To remove a service from the list, you need to call a command window. To do this, go to Start - Run, type "cmd" and press Enter. In the window that appears, type "sc delete MSSQLSERVER" and press Enter.
Most likely, you have disabled support for 32-bit applications. You need to select the GtnExpertSyncService pool, open " Extra options and set "32-bit applications allowed" to True.
1. You most likely changed the sa password when you installed SQL Server. To fix the error, you need to change the database access password in the service settings. To do this, open "Web.config", which is located in the folder with the service, and change the line "connectionString="Data Source=(local);Initial Catalog=GTNExpert;User Id=sa;Password=111″ providerName="System. Data.SqlClient" password "111" to your password".
2. You have lost the system time of the server or client computer. Data exchange is carried out over a secure channel. One of the protection conditions is the difference between the system time of the client and server computers by no more than 5 minutes. Correct the system time on the server or client.
You incorrectly specified the path to the database (i.e. the path specified in the "Path to the Gostekhnadzor 3.0 database" is missing the GTN.GDB database file). Click the "..." button in the "Path to the Gostekhnadzor 3.0 database" field and select the database file.
This problem specific to Windows XP only. Your operating system drivers have gone astray or the drivers are being blocked by antivirus. To fix it, you need to open "Start - Control Panel - Administrative Tools - Services". Look for "Windows Presentation Foundation Font Cache 3.0.0.0" and "Windows Presentation Foundation Font Cache 4.0.0.0" services. If the services are running, stop them. Then go to the Properties of each of these services ( right button click - Properties), select the startup type "Disabled" and click OK to save. After that, restart the Gostekhnadzor Expert program. The error must be fixed.
Stop SQL Server. Uncheck "Compress contents to save disk space" in the properties of the files 'C:\Program Files (x86)\Gostekhnadzor Expert\DataBase\GTNExpert.mdf', 'C:\Program Files (x86)\Gostekhnadzor Expert\DataBase\GTNExpert_log .ldf' and properties of the folder 'C:\Program Files (x86)\Gostekhnadzor Expert\DataBase\'. After that, restart SQL Server (or computer).
Most likely, the database is seriously damaged. Contact Service technical support and report a bug.
According to the message, SQL Server is not available for you. Check if SQL Server is running. The procedure for checking is described in the Installation Guide, section ‘Checking the correct installation Microsoft SQL Server'.
An error has been encountered that may occur when installing SQL Express 2008 R2.
The error symptoms are as follows. If the installation of the SQL server is started, then after it is completed, the system will report that the installation of the SQL server failed. However, after a reboot, you will be able to connect to the server, although there will be no rights to access the databases, so no further actions can be taken.
The server installation log will store the following information:
Final result: SQL Server installation failed. To continue, determine the cause of the failure, correct the problem, uninstall SQL Server, and then run SQL Server Setup again.
Exit code (Decimal): -1706970590
Exit facility code: 577
Exit error code: 45602
Exit message: SQL Server installation failed. To continue, determine the cause of the failure, correct the problem, uninstall SQL Server, and then run SQL Server Setup again.
Start time: 2013-10-15 09:18:58
End time: 2013-10-15 09:39:48
Requested action: Install
Log with failure: C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20131015_091726\Detail.txt
Exception Help Link: http%3a 3a 3D50000%26Prodver%3D10.50.4000.0%26EVTTYPE% 3d0x9A41B222
How did you find out the error occurs if the computer has Account administrator whose name is the same as the computer name. SQL Server Setup adds all local administrators on the computer as system administrators database servers. For each administrator, the SUSER_NAME function is called, which converts its SID to full name user. If the administrator's name matches the computer's name, returns empty value, which leads to this error.
Microsoft refuses to fix this error, arguing that it is impossible to create a user with the same name as the computer name, because. some programs that use NetBIOS may not work properly. Despite this, the last Windows versions allow you to create such users, unlike Windows XP. See links for more details:
In the operations window, you can view the balances Money for all BCCs (button in the lower left corner).
The program does not allow you to save the operation, because. the option in the regional version of the program "Prohibition on transactions without payment" was set.
To do this, you must first register this technique.
Add the required special products to the warehouse. The date of receipt of special products must match the date of registration (if you enter the wrong date, then these old forms may distort the reports on special products).
Carry out registration. After registration, you can remove the car from the register, make changes, etc.
Usually the error "Your connection is not secure" appears in browsers built on the Chromium engine. That is, the following methods can be tried to apply not only in Chrome, but also in Opera, Vivaldi, Yandex.Browser, Amigo, Sputnik and some others.
How to identify and eliminate the cause
1. Check which side the problem is on
First of all, you need to check the availability of the site, when accessing which an error appears. This will make sure that the problem is really on your side. To do this, you can try to access this resource from another device or through another connection.
You can also use the services of whois-services (for example, 2ip.ru), which allow you to check the availability of any site in your country for free. If the resource is blocked in Russia, then to access it you will need to resort to the help of VPN services, special extensions or.
2. Adjust the system time
The latest versions of modern ones have already learned to recognize a failure of the system time, informing the user that the clock is behind or in a hurry. And yet, in the cases of older PCs, it is precisely the significant difference between the system and real time may cause an error about the insecurity of your connection.
In such a situation, the browser rests on the validity period of the SSL certificate, which, if the time is incorrect, can be taken as invalid. Accordingly, the HTTPS connection is not secure, and it is recommended to block it, protecting the user from possible risk. The solution is to simply adjust the date and time on your device.
3. Fix browser issues
Before you start looking for problems in Chrome, update operating system and the browser itself latest version. Only after that you can proceed to the next steps.
Check the impact of extensions
Disable all extensions to see if they are the problem. You can access extensions in Chrome through "More tools" in the settings. Disabling is carried out by simply switching the toggle switches.
If the error has ceased to appear, it remains only to find the culprit. turn on one by one installed extensions and after each check the availability of the problem site.
Clear cache and cookies
If disabling extensions does not help, you need to clear the browser as well. To do this, you can use the combination Ctrl + Shift + Del, which brings up the cache and temporary files menu, or you can go to the same options through the settings.
To do this, in Chrome, in the drop-down menu on the right, go to the "More tools" section and click on "Clear browsing data". In the window that opens, select " Cookies and other site data" and "Images and other files stored in the cache". Delete the data.
Restore browser settings
A simple reset of the browser settings to default can also help. In desktop Chrome, this can be done in the section advanced settings by selecting "Restore default settings" at the very bottom of the page.
Reinstall browser
Reinstalling the web browser with prior removal old version can solve the problem too. In order not to start everything from scratch, do not forget to bookmark the pages you need.
4. Check the influence of the antivirus or firewall
Some antiviruses and firewalls have a built-in protection function. network connections over the HTTPS protocol. It may conflict with an identical browser function, resulting in an error. To check the effect of such programs, simply disable them and try to open the problem site again. If this is successful, then already in the antivirus software you can add the desired site to the list of exceptions.
It is worth disabling or limiting antivirus activity for the sake of one site only in cases where you are completely sure that there are no risks.
What to do if the cause cannot be eliminated
If none of the methods helped to solve the problem, you can enter the site by stepping over the message about an insecure connection. To do this, in the window with an error, you need to click on "Advanced" and then "Go to the site (unsafe)", if such a link is available.
When you go to some pages on the Internet, Yandex browser displays a warning about the absence of genuine certificates on the site. The program also warns that using this website may be dangerous, as its owners may try to steal your personal information. This article describes what to do if, when you go to the page you need, a window pops up with the text "Your connection is not secure."
This error means that the site is secured with a certificate that has not been registered with a certificate authority. Having a verified certificate implies that Google robots and Yandex checked the content of the site for dangerous vulnerabilities. In case of legal entities it will also mean that all the documentation of the company that owns the site is in perfect order.
If you trust this website and believe that it does not belong to scammers, you can ignore the "Your connection is not secure" warning and continue your work. To do this, you need to click on the "More" hyperlink at the bottom of the page. After that, the Yandex browser will give you the opportunity to follow the link to the desired site.
It is worth noting that unverified certificates have the same quality protection as licensed ones. There are a huge number of reasons why the check could not pass. Very often problems arise on your personal computer.
Despite this, it is recommended to exercise some caution when working on the site. It is better not to leave your credit card numbers on it, and also use logins and passwords similar to those you use on other services.
Lack of latest updates
Verification of certification is carried out using special services built into the operating system. Since technology is constantly and rapidly evolving, there is a possibility that the SSL certificate on this site contains those elements that your Windows version simply doesn't know.
Now all updates released by Microsoft will install themselves on your computer, and you do not have to control it.
Date setting
Very often, the Yandex browser warns that your connection is not secure when the time and date settings are lost. As a result of such failures, your computer may think that the SSL certificate has already expired, and the site you are interested in may pose a threat to the security of personal data.
In order to correct this misunderstanding, you need to correctly set the system clock:
Incognito Mode
If none of the above has any effect, you can try running your Yandex browser in incognito mode. This special mode, which anonymizes your online presence, making it impossible to analyze your actions search engines, saving your visited sites to history and so on.