Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Warning when opening Firefox

  • 3 replies
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

more options

Why is it every time I open Firefox I get the warning "Do you want to allow the following program to make changes to this computer?"

This just started yesterday and I had not made any changes. Firefox is up to date.

https://support.mozilla.org/en-US/questions/new/desktop/form

Why is it every time I open Firefox I get the warning "Do you want to allow the following program to make changes to this computer?" This just started yesterday and I had not made any changes. Firefox is up to date. https://support.mozilla.org/en-US/questions/new/desktop/form

Chosen solution

It's possible Firefox did not update properlly.

Press the Alt or F10 key to bring up the toolbar. Then Help > About Firefox will tell you what version you have. WARNING: and install any updates.

https://support.mozilla.org/en-US/kb/update-firefox-latest-version

Read this answer in context 👍 0

All Replies (3)

more options

Chosen Solution

It's possible Firefox did not update properlly.

Press the Alt or F10 key to bring up the toolbar. Then Help > About Firefox will tell you what version you have. WARNING: and install any updates.

https://support.mozilla.org/en-US/kb/update-firefox-latest-version

more options

Thank you. The F10 or Alt did not work but I did update (not sure how) and it seems OK now.

more options

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.