How to turn the user agent into a secure_user_agent?

Question

I am using FireFox 34.0.5 and trying to change my user agent.

As far as I am aware, an user agent is, somehow, a software acting on your behalf. For example, I am using FireFox now, hence my user agent is FireFox.

I have download two add-ons in order to try to change it. They are 'User Agent Switcher' and 'Tamper Data' but it did not work, whatsoever. The reason that it did not work is because I need a "secure_user_agent" in fact I have been told that I ought to merely change the user agent in "about:config" and change it to a secure one.

I really cannot get it.

My default user agent is - Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0

How can I turn it into a secure User Agent?

The truth is that I have to start up a FireFox page with a secure user agent because the default one is not accepted, not allowed. I have been told that I should look for something secure in the source code ....but I have not got it yet.

I have got Google Chrome 39.0.2171.95, as well, if that can make things easier.

Could you help me, please?

Solution 1

I FOUND THE ANSWER!!!!!

1. Ctrl+Shift+I
2. Click on the menu button next to "x" button
3. Click show console drawer (if its already shown just leave it like that)
4. Click the console drawer menu button (next to console tab)
5. Select "Network conditions"
6. Click the "Network conditions" tab
7. Scroll down to user agent and uncheck select automatically
8. In the enter a custom agent type "secure_user_agent" (secure_user_agent was what i was need to put in there)

Solution 2

open the Developer Tools ( Ctrl + shift + i ) click the device icon at the left top of the Developer Tools window ( beside the search icon ) a device mode will appear in the top of your web page in front of UA (User Agent) replace the "no override" with "secure_user_agent"

Comments

[DrColossos]

How do you know it "did not work?" There is no such thing as secure_user_agent in the HTTP standard.

[DrColossos]

They mean to change it to literally be the word secure_user_agent completelyunoptimized.com/2014/06/20/hackthis-basic-level-1-‌​5

[bwDraco]

Can you clarify your answer? It's a bit hard to understand.

[Omar.LKS]

Here is a link that explains what you should do step by step : winaero.com/blog/change-user-agent-firefox

[var firstName]

Alright. This question was posted over 3 years ago, and is actually just asking how to send a web request with a spoofed user agent. It's a challenge from HackThis!, and your answer will most likely be outdated by the next major release of Firefox. This challenge can be completed by intercepting a web request in a tool like BurpSuite and changing the User-Agent header to secure_web_agent before sending it to the target. Regardless, I'm sorry to say that your answer will likely never help anyone. You tried though.

[Alaa]

I have just tried it and it is still working in chrome 71

[var firstName]

the Network Conditions tab is not visible by default. The fact that this is a 4 year old question still stands though.