University Computer Help Desk

How to determine your version of Mozilla Firefox

These instructions explain how to determine the version of Mozilla Firefox. Firefox is available for both Windows and Mac operating systems.

 To determine the version of Mozilla Firefox for Windows, do the following:

  1. Launch Mozilla Firefox.
  2. Click Help.
  3. Click About Mozilla Firefox.
  4. A window appears that provides information about the browser. The version is located below the browser name.

To determine the version of Mozilla Firefox for Mac, do the following:

  1. Launch Mozilla Firefox.
  2. Click on Firefox in the upper left corner of the computer screen (next to the Apple symbol).
  3. Click About Mozilla Firefox.
  4. A window appears that provides information about the browser. The version is located below the browser name.