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.

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

How do I know if a firefox update really comes from Mozilla?

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by James

more options

I got a message saying there was an update to Firefox, and started downloaded it but did not install it. When the user account control window comes up to ask if I want to run it, the publisher is "unknown" - which is why I'm asking, is this really a Mozilla update?

I got a message saying there was an update to Firefox, and started downloaded it but did not install it. When the user account control window comes up to ask if I want to run it, the publisher is "unknown" - which is why I'm asking, is this really a Mozilla update?

Chosen solution

The desktop Firefox for Windows, Mac OSX and Linux are done in Firefox itself or by download from www.mozilla.org

Updates are not done by way of a .exe from random sites especially since Firefox is not just for Windows.

You appear to have Firefox 42.0 which is the current Release version from Mozilla. There are no updates for 42.0 planned before the Firefox 43.0 (December 15) Release that I am aware of.

Read this answer in context 👍 0

All Replies (1)

more options

Chosen Solution

The desktop Firefox for Windows, Mac OSX and Linux are done in Firefox itself or by download from www.mozilla.org

Updates are not done by way of a .exe from random sites especially since Firefox is not just for Windows.

You appear to have Firefox 42.0 which is the current Release version from Mozilla. There are no updates for 42.0 planned before the Firefox 43.0 (December 15) Release that I am aware of.

Modified by James