It's often important to know what version of Firefox you are using, to help you troubleshoot a problem or just to know if Firefox is up to date. Here are two ways to find out.
- Click the menu button
, click and select .On the menu bar, click the The About Firefox window will appear. The version number is listed underneath the Firefox name. menu and select .
Here is an example of what the About Firefox window will look like:
- Alternatively, click the menu button , click Use the Troubleshooting Information page to help fix Firefox issues. and select . A page with the address about:support will appear in a new tab. Your Firefox version is listed underneath the Application Basics section of the page. For more information, see