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Mozilla Firefox user-agent spoofing

Sometimes you run across a site that's a browser snob. You know the type.... you visit it in Mozilla Firefox or (anything other than IE) and it says, "you must use Internet Explorer version 6 or newe…

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Avery J. Parker

IT veteran, maker educator, and author of Network Ninja, 3D Printing Mastery, and AI Workflow Mastery. Business IT: Diversified Tech Solutions.

Sometimes you run across a site that's a browser snob. You know the type.... you visit it in Mozilla Firefox or (anything other than IE) and it says, "you must use Internet Explorer version 6 or newer to use this site. Well, some browsers have nice ways of changing the user agent through the menus, and I wouldn't be surprised if there's a plugin for this in firefox (haven't yet looked.) But, there is a way in about:config.


Open Firefox and in the addressbar type about:config Here - you'll see a long list of Firefox's settings and you can create a new one. (You might first check to see if it's already there just in case.) But... if it's not, right click and select New.... String....

Enter the name general.useragent.override and then the user agent you want to spoof as the value. This can also be useful if you want to spoof some other browser or downloader (wget?) to see if why you might be having page problems.

Ok - a quick look shows a plugin at this site that does the same although you might want to investigate it a bit before testing that out though. (Remember - be cautious of downloads from untrusted sources???)