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/73.0|
|Firefox on macOS||Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/73.0|
|Firefox on Linux||Mozilla/5.0 (X11; Linux i586; rv:31.0) Gecko/20100101 Firefox/73.0|
|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/22.0 Mobile/16B92 Safari/605.1.15|
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 database of many millions 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.