Your User Agent (UA) switcher add-on does not change the details that can be probed by JavaScript. Originating from the web model of Progressive Enhancement, JavaScript can be used for things such as to probe a browser to detect its capabilities and identification.
https://addons.mozilla.org/en-US/firefox/addon/user-agent-js-fixer/
I use this add-on to complement the functionality of any other UA add-on. There are also other add-ons that can be used to change the UA on a per site basis. It seems that this add-on only changes the browser ID code, so be aware of that if you want to change operating system or others, as well.
>>54889595
list of browser ID user agents
www.zytrax.com/tech/web/browser_ids.htm
Why would you want to spoof other browsers?
Are you doing something illegal?
>>54889947
I'm spoofing it now because I'm using Firefox instead of the default IE on a school computer. I'd rather not stand out.
Also, it is useful for websites that will use JavaScript anyway to identify your browser. It's useful if you want to force a website to let you use the browser you want (some will say your browser is incompatible) or use a different version of the site.
>>54890021
Not only this but some adware sites may use exploits according to browser/os version. So additional security.
>>54890753
how would you know which sites and browsers may be vulnerable
what you up to
>>54891900
Fun fact: Some prices change and are cheaper if the website (in this case amazon) thinks you use iPhone or other stuff.
>>54889595
doesnt umatrix also spoof user agents?
what is your guys main user agent? Mine switches every refresh but my main one when I have my switcher off is
Fuckoff/5.0 (GoFuckYourself; rv:9001.0) Gecko/20100101 fuk/9001.0
version 9001 is pretty steady