How do I find my web browser’s version number?

Windows Mac OS
Firefox Click the Help menu, and then select About Mozilla Firefox. Click the Firefox menu, and then select About Mozilla Firefox.
Internet Explorer Click the Help menu, and then select About Internet Explorer. Click the Explorer menu, and then select About Internet Explorer.
Safari Click the General Safari Settings button, and then select About Safari. Click the Safari menu, and then select About Safari.
Google Chrome Click the Customise and Control button, and then select About Google Chrome. Click the Chrome menu, and then select About Google Chrome.

Upgrade your browser to the latest version: