Solving common problems

If Yandex Browser doesn't start or you see the error "The application has failed to start because its side-by-side configuration is incorrect," try installing the latest browser version. Download the installation file from browser.yandex.com/ .

If this doesn't help, write to us.

Describe what is happening, step by step:

• What happens when you try to open Yandex Browser (for example, you get an error message or the Yandex Browser window doesn't open correctly).
• What happened before this issue started occurring (for example, did you update Yandex Browser or OS? Did you install a program or extension?).
• How long you have been experiencing problems opening Yandex Browser.

If possible, attach a screenshot.

The browser may freeze if there's less than 600 MB of free disk space. Free up disk space.

If this doesn't help, contact support using the form.

• Describe what actions cause Yandex Browser to freeze.
• Does the problem occur with all webpages or only certain ones (if so, which ones?)
• Add a link to the net-export log. You will need to take screenshots of this log (as explained in the instructions) and upload them to any cloud storage of your choice.

If you have problems opening pages, include the error text in your message.

1. In your user profile, close all the tabs, clear the cache, and restart the browser.
2. If this doesn't help, try creating a new user profile and repeat the situation in it.

   Attention. Don't delete your old profile when creating a new one since it contains your data (for example, bookmarks, passwords, and so on).

   After that, open Yandex Browser via the shortcut of your new profile on the desktop and check whether it starts faster. If everything works correctly in the new profile, you can continue using it and transfer all your personal data from the old profile by syncing (enable syncing in the new profile under the same username as in the old one).

   Don't delete your old profile until you're sure that everything works correctly in the new one after the transfer.

3. If the situation repeats after you transfer the settings, this may mean that an extension isn't working correctly. Turn off the extension that is causing problems:

   1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
   2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
   3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
   4. Disable this extension. You may want to let the developers know about the problem.

Modern browsers use RAM actively. Full-featured apps have replaced static pages on the internet. Let's say you have a music player open in one tab, a YouTube video in another tab, and an online editor in a third. In order for you to switch between tabs quickly, your data has to be stored in RAM.

On average, with several tabs open, Yandex Browser consumes from 300 MB to 1000 MB of RAM.

You don't need to worry if there are a lot of processes running. All browsers based on the Chromium engine work like this. Every browser window, as well as some extensions and plugins, is a separate process that won't affect other tabs and extensions in the event of a failure.

Check all extensions and clear your cache, history, and cookies.

Check extensions

1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
4. Disable this extension. You may want to let the developers know about the problem.

Clear the cache

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cache for.
3. Select the cached files option.
4. Deselect all other options (if you want to clear only the Yandex Browser cache).
5. Click Clear.

Clear history

1. Click   → History → History.
2. In the lower-left corner, click Clear history.
3. In the Clear history window, set the period.
4. Select Views.
5. If necessary, deselect all other options.
6. Click Clear.

Clear cookies

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cookies for.
3. Select Cookies and other site data and plugins (deselect all other options if you want to delete only cookies).
4. Click Clear.

If this doesn't fix the problem, write to us and describe the situation in as much detail as possible.

There are a few reasons why a site may not open or fully load:

Network constraints

Certain restrictions in your network can also obstruct site access. Those might be caused by software (antivirus programs, firewalls, or viruses), or network settings on the provider side (such as proxy servers).

Check whether you can access the site on another computer from a different network to make sure that the site works. If the site fails on your computer only, we recommend contacting your system administrator or your provider's support.

There are a lot of temporary files

Webpages may not load completely if you have a lot of temporary files. Follow these instructions to delete all cookies for that page:

1. Click   → Settings → Websites.
2. At the bottom of the page, click Advanced site settings.
3. In the Cookies section, click Cookies and site data.
4. Hover over the desired site and click the Remove link that appears to the right of the site name. All cookies of this page will be deleted.

Check whether the problem persists.

Website blocks extensions

To check whether extensions are blocking a page from displaying, open the site in Incognito mode. If the Incognito mode does not reproduce the problem, try to find an extension that blocks page loading.

1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
4. Disable this extension. You may want to let the developers know about the problem.

Incorrect DNS settings

1. Open the Windows shell. Press Windows + R on the keyboard or type “Run” in the search bar. In the dialog box that opens, enter cmd using your keyboard.
2. Enter ipconfig/flushdns.
3. Restart your network connection.

Other problems with Yandex Browser

If a site opens in all browsers except Yandex Browser, contact support. Describe the situation in detail, and attach a screenshot if possible.

If you see the message "Cannot establish a secure connection" with the error ERR_CERT_DATE_INVALID when opening the site, or the error is displayed instead of part of the site, this may mean that the IdenTrust DST Root CA X3 root certificate in the operating system expired.

Yandex Browser uses root certificates installed in the operating system, so you need to solve the problem with the certificate in the system:

If you cannot establish a secure connection to Yandex services due to the ERR_CERT_AUTHORITY_INVALID error, it means that the certificate is missing from the operating system. Update Windows (Control panel → Windows update). If this didn't help, try downloading and importing the certificates manually:

1. Downloading the certificates to your computer using the following links:

   • Certum CA
   • Certum Trusted Network CA
   • GlobalSign Root CA — R1
   • GlobalSign Root CA — R2
   • GlobalSign Root CA — R3
2. The Certum CA and Certum Trusted Network CA certificates have been downloaded to your computer in the TXT format. Remove the .txt extension from them:

   1. Open the Windows Control panel.
   2. Click Folder Options (in Windows 10, click File Explorer Options).
   3. On the View tab, clear the Hide extensions for registered file types option.
   4. Click Apply.
   5. Open the Certum CA certificate in Notepad and save it after removing the .txt extension to get the CA.pem file.
   6. Open the Certum Trusted Network CA certificate in Notepad and save it after removing the .txt extension to get the CTNCA.pem file.
3. Import certificates by going through the following steps for each certificate:

   1. Open the Windows shell. Press Windows + R or type “Run” in the search bar. In the dialog box that opens, enter certmgr.msc.
   2. Open the Trusted root certification authorities folder and then the Certificates folder.
   3. Click Action → All Tasks → Import. The Certificate Import Wizard starts.
   4. Click Next.
   5. Select the certificate and click Next.
   6. Make sure that the Certificate store field is set to Trusted root certification authorities. Click Next.
   7. Click Finish.
   8. In the window that opens, click Ok.
4. Restart Yandex Browser.

If you see this error message when you open a page, try to solve the problem using one of these methods:

Delete cookies

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cookies for.
3. Select Cookies and other site data and plugins (deselect all other options if you want to delete only cookies).
4. Click Clear.

Clear your cache

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cache for.
3. Select the cached files option.
4. Deselect all other options (if you want to clear only the Yandex Browser cache).
5. Click Clear.

Reset your DNS settings

1. Open the Windows shell. Press Windows + R on the keyboard or type “Run” in the search bar. In the dialog box that opens, enter cmd using your keyboard.
2. Enter ipconfig/flushdns.
3. Restart your network connection.

If you see this error, it means the internet connection in Yandex Browser is set to use a proxy server. If your network doesn't use a proxy server, turn off this option.

1. Click   → Settings → System.
2. In the Network section, click Proxy server settings.
3. In the window that opens, go to the Connections tab and click Network settings.
4. In the window that opens, clear the option Use a proxy server for your LAN.

A “Connection failure” error means that the browser could not retrieve a webpage.

Failures may occur due to the following:

Problems with how the site works

Try opening other sites in Yandex Browser. If you do not see the connection error, there was probably a failure on the side of the initial site, or the site's owner is running maintenance at the moment. Try going to the site again later. If the problem persists, contact the website's developers.

Problems with your internet provider

Contact your internet provider and ask if there have been any network failures or if they are conducting maintenance work.

Site blocked by antivirus or firewall

Check the list of blocked resources in your antivirus (Windows firewall). If you locate the page in the list, delete it.

Attention. Only delete a page if you are completely sure that it is safe, though. If the page contains malicious code, it can infect your computer or give hackers access to your personal information and electronic payments.

Yandex Browser was infected by a virus

Scan your computer using an antivirus or free utilities.

Incorrect DNS settings

1. Open the Windows shell. Press Windows + R on the keyboard or type “Run” in the search bar. In the dialog box that opens, enter cmd using your keyboard.
2. Enter ipconfig/flushdns.
3. Restart your network connection.

Proxy server not configured correctly

1. Click   → Settings → System.
2. In the Network section, click Proxy server settings.
3. In the window that opens, go to the Connections tab and click Network settings.
4. In the window that opens, clear the option Use a proxy server for your LAN.

Yandex Browser used Turbo mode to speed up access to various sites, but it only worked with the HTTP protocol. Since there aren't many sites like that left, we turned off Turbo mode in Yandex Browser and removed it from settings. We introduced other mechanisms to keep Yandex Browser fast without any special modes and will continue working to make it even faster.

You can't clear the SSL cache using Yandex Browser tools because it uses the system certificate store.

To clear the SSL cache, use the Windows settings:

1. Open the Control Panel.
2. Choose Browser properties. If you have the category view mode enabled, choose Network & Internet → Browser Properties.
3. On the Content tab, click Clear SSL.

Some website features may stop working after cookies have been blocked. For example, notifications you previously enabled in Yandex Browser or the verification code window may not pop up anymore. If you see the  icon to the right of the SmartBox, it means that you blocked cookies on this page.

If you see the  icon:

1. Click   → Settings → Websites.
2. At the bottom of the page, click Advanced site settings.
3. In Cookies, select Allowed.
4. Deselect Block third-party data and files.
5. Click Sites advanced settings.
6. Check whether the Only for session or Not allowed lists contain the problematic site. If a site is in the list, hover over it and click the Allow link.

Errors may occur with some integrated video cards after you update Yandex Browser:

• Suggestions disappear.
• Downloaded files no longer display in the downloads toolbar.
• Yandex Browser doesn’t respond when you try to use it for the first time after an update. However, the Enter key does work. When you press it, a Windows dialog box opens and prompts you to select your default browser.

If you get one of these errors, deselect the Hardware acceleration option in the browser:

1. Click   → Settings → System.
2. In the Performance section, deselect the Use hardware acceleration if possible option.
3. Close Yandex Browser by pressing Ctrl + Shift + Q.
4. Restart the browser to apply these changes.

If this doesn't help, write to us.

If Yandex Browser doesn't have enough memory, any tabs you haven't used in over 10 minutes may be discarded. When you open such a tab, it reloads from the internet. Yandex Browser works faster after discarding unused tabs from its memory, but the data you entered may be lost. To disable tab discarding:

1. Click   → Settings → System.
2. In the Performance section, deselect the Discard unused tabs from memory option.

If new windows or tabs with empty pages, ads, or suspicious content open by themselves, try the following:

Check all installed extensions

1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
4. Disable this extension. You may want to let the developers know about the problem.

Clear your cache

1. Click   → Advanced → Clear history.
2. Under Clear history, select the time range that you want to delete the cached data for.
3. Select the cached files option.
4. Deselect all the other options (if you want to delete only the Yandex Browser cache).
5. Click Clear.

Delete cookies

1. Click   → Advanced → Clear history.

   Tip. You can open the Clear history window by pressing Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time range that you want to delete the cookies for.
3. Select Cookies and other website and plugin data (disable all the other options if you only want to delete cookies).
4. Click Clear.

Check your computer using an antivirus

Update the antivirus and scan your computer for malware. If you do not have an antivirus installed, use a free program.

Maybe you tried dragging the window by clicking the address area in the Smart Bar. Move the mouse to the right so that the text field cursor turns into an arrow, click the left mouse button, and drag the window.

Webpages might display incorrectly. For example, jumbled characters may be displayed instead of letters, or the page formatting may be broken.

Try the following: refresh the page, delete your browser cache and cookies, turn off utilities and any Yandex Browser extensions that may be causing the problem.

Disable utilities

The most common reason why sites are displayed incorrectly is because of a proxy server or extra firewall (in addition to the standard Windows firewall). Temporarily disable them to find out if they affect the display of site pages. We do not recommend using utilities that cause display errors.

Check Yandex Browser extensions

1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
4. Disable this extension. You may want to let the developers know about the problem.

Refresh page

1. Open the page with the formatting problems.
2. Press F5 (in Windows and Linux) or ⌘ + Shift + R (in macOS).

Delete cookies

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cookies for.
3. Select Cookies and other site data and plugins (deselect all other options if you want to delete only cookies).
4. Click Clear.

Clear your cache

1. Click   → Advanced → Clear history or press Ctrl + Shift + Del (in Windows and Linux) or Shift + ⌘ + Backspace (in macOS).
2. Under Clear history, select the time period that you want to delete the cache for.
3. Select the cached files option.
4. Deselect all other options (if you want to clear only the Yandex Browser cache).
5. Click Clear.

Disable hardware acceleration

1. Click   → Settings → System.
2. In the Performance section, deselect the Use hardware acceleration if possible option.
3. Close Yandex Browser by pressing Ctrl + Shift + Q.
4. Restart the browser to apply these changes.

Disable ad blocking

If pages aren't displayed correctly (images don't load, content is missing, the layout of page elements is broken), unblock ads for this page:

1. Click .
2. In the Ad and tracker blocking section, click Settings.
3. Click Unblock in this tab.

Disable DNS encryption

1. In the upper-right corner, click   → Settings.
2. Go to the Protect tab at the top of the page.
3. In the Secure connection section, disable the Use DNS server for DNSCrypt encryption option.

If this doesn't solve the problem, enable the option again and select a different server from the list (for example, AdGuard public DNS servers without filters).

There are several reasons why images or photos might not be displayed:

Images are blocked by an extension

Some extensions (such as ad blockers) restrict the display of page content, including videos and images.

1. Click   → Add-ons and turn off all the extensions. Restart Yandex Browser using the keyboard shortcut Ctrl+Shift+Q.
2. Clear your cache so that the browser doesn't load a copy of the page that was saved earlier.
3. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.
4. Disable this extension. You may want to let the developers know about the problem.

Browser blocks all images

1. Enable image display:  → Settings → Websites.
2. At the bottom of the page, click Advanced site settings.
3. In the Image display section, select Allowed.
4. Clear the browser cache.
5. Refresh the page to make sure the problem has been resolved.

Browser blocks images on a specific site

In this case, the  icon appears in the SmartBox.

1. Open the webpage.
2. Click .
3. In the Protect panel, click Learn more in the section where the connection status is displayed.
4. In Permissions, find Images and select Allowed.
5. Refresh the page to make sure the problem has been resolved.

The image was black-listed

1. Click   → Settings → Tools.
2. In the Ad blocker section, select Blocked ads.
3. Hover your mouse over the address of the desired image and click Remove.
4. Refresh the page to make sure the problem has been resolved.

If an image on the page is displayed incorrectly (for example, the transparency of a PNG image is lost) or in low quality, try disabling image optimization:

1. Click   → Settings → System.
2. In the Performance section, disable Optimize images to conserve system memory.
3. Restart the browser to apply these changes.

Check your monitor's color profile settings

1. In the SmartBox, enter browser://flags.
2. Find the Force color profile option and change its value.
3. Restart Yandex Browser and check the results.

1. Click   → Settings → System.
2. If the Use hardware acceleration if possible option is selected in the Performance section, deselect it. If the option is deselected, select it.
3. Close Yandex Browser by pressing Ctrl + Shift + Q.
4. Restart the browser to apply these changes.