Windows 10 Remove duplicate default program entry

Jimmy59601

Extraordinary Member
Joined
Nov 22, 2014
Messages
15
After a bout with some malware, I found that I have two entries for Firefox in my list of default programs in Win 10 settings. One won't let me pick Firefox as the default browser when I choose that one. I want to remove it from the list. Is there a way? See the screenshot. Thanks!
 
Solution
To locate the keys
  • Click on Start
  • Type regedit
  • Expand the HKCR hive
  • Scroll down to FireFoxHTML-
Each version of FireFox will produce a FireFoxHTML-####### and FireFoxURL-#####. If you're on the current version of FireFox (63.0.3) then the correct two keys will be HKEY_CLASSES_ROOT\FirefoxHTML-308046B0AF4A39CB and HKEY_CLASSES_ROOT\FirefoxURL-308046B0AF4A39CB you should be able to delete the other HTML/URL pairs.

Once removed you will need to close and re-launch System Settings
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perhaps it might help if you look in the Programs and features (Setting - Apps, and, on the right) and see if you possibly have two entries of different versions there
 
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davehc said:
perhaps it might help if you look in the Programs and features (Setting - Apps, and, on the right) and see if you possibly have two entries of different versions there
Click to expand...

Did that. Only one. My guess it the legit FF. I probably do some research on the registry, as I'd bet it's there somewhere.
 
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Maybe if you unistll FF , you can then find the other and delete it manually. Easier enough to reinstall.
 
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True, but there is only one FF on my system, in any of the customary folders, and I don't think the remaining one will show up after reomving the real FF. My guess is that it's a, phantom entry with no artifacts in my folder structure. I'll run a search of the registry first
 
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I was able to replicate your issue by installing two versions of Firefox, so for starters open "Add/Remove Programs" and verify you don't have two versions installed. If you don't then it's most likely a registry key left over for the old version.
 
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To locate the keys
  • Click on Start
  • Type regedit
  • Expand the HKCR hive
  • Scroll down to FireFoxHTML-
Each version of FireFox will produce a FireFoxHTML-####### and FireFoxURL-#####. If you're on the current version of FireFox (63.0.3) then the correct two keys will be HKEY_CLASSES_ROOT\FirefoxHTML-308046B0AF4A39CB and HKEY_CLASSES_ROOT\FirefoxURL-308046B0AF4A39CB you should be able to delete the other HTML/URL pairs.

Once removed you will need to close and re-launch System Settings
 
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Solution
 
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I solved the problem. It was with a Firefox shortcut that I placed on the Taskbar. The shortcut opened FF to my home page, my.yahoo.com. I found that. if I opened FF from a Taskbar shortcut that opened Google.com, the issue did not occur. I deleted the problem shortcut and created a new one that also opened FF to my.yahoo.com and the problem did not present or recur. Regardless, thanks very much for your help!
 
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