Why has my browser font changed by itself? [TECHNICIAN FIX]

Tashreef Shareef
by Tashreef Shareef
Windows & Software Expert
Tashreef Shareef is a software developer turned tech writer. He discovered his interest in technology after reading a tech magazine accidentally. Now he writes about everything tech from Windows to iOS and streaming services... Read more
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  • Users reported that sometimes their web browsers change the fonts that they use.
  • If you too have this issue, then continue reading the guide below for help.
  • Want to read more about browser issues? Visit our dedicated Browser page.
  • Need further assistance with your PC? Check out our dedicated Fix Hub.
Fix - my browser fonts changed by itself
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Windows OS users have the option to customize the complete look of their computers. The customization option also includes downloading and installing third-party fonts on their computer. However, at times these adventures can go wrong and you may end up with completely changed fonts on the web browser making it extremely difficult to read or write.

So, you may be wondering why your browser font is so small? Or why it’s not the same. Well, read on to learn how to fix this by following our troubleshooting guide.

Why is my browser font messed up?

1. Switch to a different browser

If you’re unable to resolve the problem with fonts with the first two solutions and can’t be bothered to dig dip into registry fixes, try switching the browser. The browser that we can wholeheartedly recommend is Opera.

Opera can do everything Chrome can, but adds another layer of privacy and safety for all users that care about anonymity and security when online.

As for the font issue, Opera has a much deeper ability to be customized. This includes arranging UI elements and extensions, all so that you can benefit from a totally 100% personalized experience.

Speaking of which, since Opera is Chromium-based, it can use the same extensions as Chrome. As such, any font extensions will work on Opera without an issue as well.

Opera

Opera

A fantastic web browser that allows you to customize and rearrange every part of it, down to the fonts that the text is written with.

2. Delete the problematic font

  1. Press the Windows Key + R to open Run.
  2. Type control and press OK to open the Control Panel.
  3. Click on Appearance and Personalization.
  4. Click on Fonts.
    Delete Font Control Panel
  5. Now find the font that you installed recently and started to cause the issues.
  6. Select the font and click on Delete.
  7. After deleting the font restart the computer.

3. Check for Windows Update

  1. Click Start and select Settings.
  2. Choose Security and Updates.
  3. Click on Windows Updates and check for new updates.

4. Change Windows Fonts Manually

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Note: Before changing the font, please create a System Restore Point. Here is how to do it.

  1. Type Restore Point in the search bar.
  2. Click on Create a Restore Point.
    Restore Point - System Properties - Create my browser fonts changed by itself
  3. Click on Create button and enter a name for the restore point.
  4. Then click on Create button to proceed.

Find the Font you want to use

    1. Click on the Start button and select Settings.
    2. Click on Personalization.
    3. From the left pane, click on the Fonts tab.
      Windows 10 Fonts settings
    4. Now see all the fonts available on your system. Note the exact name of the font you want to use. For this guide, I will be changing the font to Agency FB.
    5. Open Notepad. Copy and paste the following registry code into the text file.
      [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFonts] "Segoe UI (TrueType)"="" "Segoe UI Bold (TrueType)"="" "Segoe UI Bold Italic (TrueType)"="" "Segoe UI Italic (TrueType)"="" "Segoe UI Light (TrueType)"="" "Segoe UI Semibold (TrueType)"="" "Segoe UI Symbol (TrueType)"="" [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFontSubstitutes] "Segoe UI"="Agency FB"
  1. In the above code make sure you change the Agency FB with your own font name.

custom Font Save Notepad reg file my browser fonts changed by itself

  1. Press Ctrl + S. Under “Save as type” select All Files and name the file as myfont.reg
  2. Click Save.
  3. Double-click on your newly created file (Myfont.reg) and click Yes. Click OK to merge into the registry.
  4. Restart your computer and check for any improvements.

Revert the Changes 

Follow these step to revert the changes you made to the system fonts above.

  1. Open Notepad. Copy and paste the following code in the file.
    [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFonts]
    "Segoe UI (TrueType)"="segoeui.ttf"
    "Segoe UI Black (TrueType)"="seguibl.ttf"
    "Segoe UI Black Italic (TrueType)"="seguibli.ttf"
    "Segoe UI Bold (TrueType)"="segoeuib.ttf"
    "Segoe UI Bold Italic (TrueType)"="segoeuiz.ttf"
    "Segoe UI Emoji (TrueType)"="seguiemj.ttf"
    "Segoe UI Historic (TrueType)"="seguihis.ttf"
    "Segoe UI Italic (TrueType)"="segoeuii.ttf"
    "Segoe UI Light (TrueType)"="segoeuil.ttf"
    "Segoe UI Light Italic (TrueType)"="seguili.ttf"
    "Segoe UI Semibold (TrueType)"="seguisb.ttf"
    "Segoe UI Semibold Italic (TrueType)"="seguisbi.ttf"
    "Segoe UI Semilight (TrueType)"="segoeuisl.ttf"
    "Segoe UI Semilight Italic (TrueType)"="seguisli.ttf"
    "Segoe UI Symbol (TrueType)"="seguisym.ttf"
    "Segoe MDL2 Assets (TrueType)"="segmdl2.ttf"
    "Segoe Print (TrueType)"="segoepr.ttf"
    "Segoe Print Bold (TrueType)"="segoeprb.ttf"
    "Segoe Script (TrueType)"="segoesc.ttf"
    "Segoe Script Bold (TrueType)"="segoescb.ttf"
    
    [HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionFontSubstitutes]
    
    "Segoe UI"=-
  2. Save the file as Revertfont.reg. Make sure you set Save as Type to All File.
    revertfont reg file notepad my browser fonts changed by itself
  3. Double-click on revertfont.reg and click Yes > OK to make the changes.
  4. Restart your computer and check if the default font is restored.

Follow the steps above and you should no longer have any more font issues with your Internet browser. Let us know which solution you used by leaving us a message in the comments section below.


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