We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Problem Setting Firefox as Default Browser

  • 3 replies
  • 1 has this problem
  • 12 views
  • Last reply by FredMcD

user175951022288904275780780225432765232213
user175951022288904275780780225432765232213
more options

Windows 10 Home 21H1 (in Korean Environment) Firefox Developer Edition 92.0b5 (64-bit), installed in "D:\Program Files\Firefox Developer Edition", linked directory "C:\Program Files\Firefox Developer Edition" to installed path

1. When I choose the default browser app in Windows settings, It displays Firefox twice. https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-08-19-19-10-04-f5ef95.png

2. I selected either of them as default browser, but Firefox settings displays that it's not selected as default browser. And also "set as default browser" button does not work

How can i solve this problem?

Windows 10 Home 21H1 (in Korean Environment) Firefox Developer Edition 92.0b5 (64-bit), installed in "D:\Program Files\Firefox Developer Edition", linked directory "C:\Program Files\Firefox Developer Edition" to installed path 1. When I choose the default browser app in Windows settings, It displays Firefox twice. https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-08-19-19-10-04-f5ef95.png 2. I selected either of them as default browser, but Firefox settings displays that it's not selected as default browser. And also "set as default browser" button does not work How can i solve this problem?
Attached screenshots

All Replies (3)

FredMcD
FredMcD
more options

It's possible you have two versions of the program.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files . C:\Program Files (x86) Note: Check Both Folders

user175951022288904275780780225432765232213
user175951022288904275780780225432765232213 Question owner
more options

FredMcD #answer-1436807

I did NOT install 2 versions, I installed at D: drive, and created directory shortcut using "mklink" command in cmd.exe at "C:\Program Files"

Modified by user175951022288904275780780225432765232213

FredMcD
FredMcD
more options

I don't know how that works.

You should try asking here: https://support.microsoft.com

http://answers.microsoft.com/en-US/windows/forum/windows_10