The latest user agent for Firefox

Mozilla Firefox runs on a several different operating systems and the user agent structure for each varies a bit.

Here we have the latest user agents for Firefox on Windows, macOS and Linux.

Please note that these are very "stock-standard" Firefox user agents and certainly don't reflect the wide variety of possible Firefox user agents that exist today. These user agents don't show anyextra addons, network providers or anything else customised or particular; these are just the standard user agents. Please explore our huge user agent listing if you're curious about other user agents.

Platform Latest Firefox User Agent
Firefox on Windows Mozilla/5.0 (Windows NT 6.1; WOW64; rv:54.0) Gecko/20100101 Firefox/69.0
Firefox on macOS Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/69.0
Firefox on Linux Mozilla/5.0 (X11; Linux i586; rv:31.0) Gecko/20100101 Firefox/69.0
Firefox on Android Mozilla/5.0 (Android 8.0.0; Mobile; rv:61.0) Gecko/61.0 Firefox/68.0
Firefox on iOS Mozilla/5.0 (iPhone; CPU iPhone OS 12_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/19.0 Mobile/16B92 Safari/605.1.15

Special notes

Major release version numbers only

For a while now, Firefox's user agent has only included the "major release" version number in the user agent; so while a copy of Firefox might actually be version 61.0.2, it would only be reported as version "61.0" in the user agent.

Experiment with different user agents

You can use our User Agent Parser page to try out different user agent varieties, or to test if your user agent switcher is working properly.

Database of user agents

If you're interested in our huge (more than 3 million records and growing!) database of user agents, please check out our API which provides access to our user agent database. You can perform very detailed and specific queries on it to find user agents that match your exact criteria (version numbers, hardware types, platforms and so on.

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