How to check which version of Firefox you have on your computer

If you have an update available for Firefox, you can also update it directly from this menu.
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Cutting-edge websites will sometimes require an up-to-date version of Firefox to function at their best or even at all.

Other times, you may have a slower computer that demands an older version of Firefox in order to perform optimally.

Whatever the reason, and whatever Firefox version, here's how to check which version of the Mozilla web browser you're using.

1. Open Firefox on your Mac or PC .

2. With Firefox open, click the top dropdown menu and select "Firefox," located to the right of "File."

Which version of Firefox do I have Emma Witman/Business Insider

3. Select "About Firefox." The numeric Firefox version will be listed near the top.

If your Firefox version is not up-to-date, you'll have the option to update and restart the browser in this same window.

If your Firefox version does need to be updated, there will be a button in the same window to restart and update.

Which version of Firefox do I have Emma Witman/Business Insider

If you'd like to use an older version of Firefox, you'll need to uninstall Firefox and install an older version.

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