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!

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Windows 10 Pro won't allow installation of Firefox

  • 1 resposta
  • 1 has this problem
  • 8 views
  • Last reply by cor-el

gio20
gio20
more options

I want to use Firefox as my default browser and have it installed on my laptop. My current default browser is Chrome. When I click on Firefox in the start menu, the user account control window pops up and asks if I want to allow Firefox to make changes to my computer. Click yes, and it just continues to ask if I want to make changes but never opens.

I am running Windows 10 Pro which was recently upgraded from Windows 7 Pro.

Any help would be appreciated. Thanks.

I want to use Firefox as my default browser and have it installed on my laptop. My current default browser is Chrome. When I click on Firefox in the start menu, the user account control window pops up and asks if I want to allow Firefox to make changes to my computer. Click yes, and it just continues to ask if I want to make changes but never opens. I am running Windows 10 Pro which was recently upgraded from Windows 7 Pro. Any help would be appreciated. Thanks.

Chosen solution

Check that Firefox isn't set to run as Administrator.

You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab.

Make sure all items are deselected in the "Compatibility" tab of the Properties window.

  • Privilege Level: "Run this program as Administrator" should not be selected
  • "Run this program in compatibility mode for:" should not be selected

Also check the Properties of the firefox.exe program in the Firefox program folder.

Ler a resposta no contexto 👍 1

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

Check that Firefox isn't set to run as Administrator.

You can open the Properties of the Firefox desktop shortcut via the right-click context menu and check the "Compatibility" tab.

Make sure all items are deselected in the "Compatibility" tab of the Properties window.

  • Privilege Level: "Run this program as Administrator" should not be selected
  • "Run this program in compatibility mode for:" should not be selected

Also check the Properties of the firefox.exe program in the Firefox program folder.