I have Windows 7 x64 (built 7600).
I just installed Firefox 3.6 and I set it as my default browser, upon I've set that all of my HTML files were been without any icons!
Could you please guide me how I can fix HTML files' icons when FF3.6 is my default browser?

Whenever I set IE8 as my default browser the HTML files' icons were fixed.

  • Whenever this happens, I uninstall Firefox and reinstall it from an installer.
    – endolith
    Jul 18, 2013 at 15:22

4 Answers 4


I just installed Firefox 3.6 and am also seeing this behavior. I actually hadn't noticed until you brought it up, to be honest.

So what we're going to do is work with the registry, a la the instructions provided here. Essentially we're going to force HTML files to display an appropriate file type icon. I will edit this answer with more details in a few minutes after testing the technique.


First off, that technique should work, and the keys you should be looking for are HKEY_ROOT\.htm, HKEY_ROOT\.html and HKEY_ROOT\FirefoxHTML.

However, I'm noticing that I already had HKEY_ROOT\FirefoxHTML\DefaultIcon configured, and even after configuring HKEY_ROOT\.htm and HKEY_ROOT\.html as well (all to use Firefox's executable icons), and rebooting, and manually rebuilding the icon cache, I still have blank icons.

I'm not forced to believe that the issue is with the Firefox executable itself. However, you may have better luck specifying a .ico file.


Here is what fixed this annoying issue for me. I'm on a Windows 7 64 bits, and I use Firefox as default browser.

  1. open regedit from Win Menu\ Run
  2. go to HKEY_CLASSES_ROOT\FirefoxHTML.
    • That registry key will be different if you default to Chrome. In order to know which key to go to, check the predefined value in HKEY_CLASSES_ROOT\.html and HKEY_CLASSES_ROOT\.htm
  3. Within that FirefoxHTML (or equivalent one), under ShellEx key there should be an IconHandler key
  4. Just rename that last one, e.g. prefix it with an hyphen (-IconHandler) so to disable the HTML icon special treatment and revert to default icon string value.


  • 1
    This worked also in Windows 10 (upgraded from Win7).
    – antak
    Aug 1, 2016 at 1:55
  • Mine has no IconHandler key :(
    – primehalo
    May 18, 2017 at 22:50
  • 1
    I had the same issue after uninstalling Office 2010 on Windowns 8. Deleting the IconHandler key worked.
    – akinuri
    Sep 12, 2017 at 12:18

Firefox icon missing in Windows 7 x64: https://support.mozilla.com/en-US/forum/1/481472 "Peter" has a registry fix there

  • Thanks Ramesh, I've followed the link, but it doesn't work for me! Mar 15, 2010 at 19:21
  • Link doesn't work anymore
    – primehalo
    May 18, 2017 at 22:52

This is how i fix this issue:

Windows 7 x64 with Chrome 68.0.3440.106 (Official Build) (64-bit)

  1. Open regedit
  2. Go to HKEY_CLASSES_ROOT\ChromeHTML\DefaultIcon
  3. Edit Default–in the right panel
  4. Copy chrome.exe path: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" and paste into Default
  5. Click OK, then Refresh/F5
  6. Voila!

Hopefully this help!

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