Have you been asked this question by your organizations IT department? Typically it's a question that is asked
when trying to assist with an issue that is occuring in the browser. The IT team having the browser version
can then use that information to help them test different scenarios and resolve the issue.
Can I find out the version another way?
Of course, but the information may be in different places depending on which version you have. Typically it
can be found by clicking the "Firefox" dropdown from the top left then selecting "Help" and "About Firefox".