Technology

What Version of Firefox Do I Have?

Last modified 9/20/2023

These instructions explain how to determine the version of the browser, 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 the 3 Horizontal Lines menu stack in Firefox in the upper right-hand corner and then scroll down to and click on Help.
  3. Click About Firefox.
  4. A window appears that provides information about the browser. The version is located below the browser name (Figure 1).

    Figure 1:
    FireFox for Windows - Version

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 Firefox.
  4. A window appears that provides information about the browser. The version is located below the browser name (Figure 2).

    Figure 2:
    FireFox for Mac - Version

How to Get Help