Changing User Agent in Firefox - Set Custom User Agent in FireFox

It looks like funny things but in technical terms, you can prove a bit Genius in front of your friends. Changing User Agent in Firefox actually a trick to Modify default user agent of browser and Set Custom User Agent in FireFox.

One of mine friend visited a website using my PC and mine with a funny User Agent string. I used Google to find out how to change this string within Mozilla Firefox and found the answer on a Mac OS X forum.

The posting described a method of changing the string in Firebird, the old name of FireFox. The name Firebird was dropped by Mozilla, because there is also a database with this name.

How To Set Custom User Agent in Firefox-

It's not a big deal, you have to follow few steps as below:

1- Enter about:config in your Firefox URL area.

changing user agent in firefox
You will get an option just like above Image, click on accept and proceed it.

2- Right click on any highlighted area and select New > String as below image.

Change Custom User Agent in FireFox

Now enter Enter the preference name "general.useragent.override", without the quotes.

Then Enter Your custom user agent value, for example, mine "TricksWay - Makes You Smarter"

Change Custom User Agent in FireFox

That's all.

Now Enter "about:config" in URL, you will see your custom User Agent as below image.

Override FireFox UserAgent Custom

It's time to confuse web based sites and Google, just Google user agent testing sites and see the effect.

Himanshu is a young engineer living in India. Currently working at Cognizant as a Senior Engineer. He is an ethical hacker & blogger too, doing lots of crazy stuff... If you seem interesting, go through his portfolio: : "Open Source. Millions of open minds can't be wrong!

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