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firefoxconfiguser-agentspoofing

Spoof useragent using the firefox config file?

In firefox you can access a config by typing about:config into the adress bar. In this config how do you alter your useragent?

Solution

  • You have to add an entry.

    1. Right Click on about:config page
    2. New -> String
    3. Preference Name: "general.useragent.override" -> OK
    4. Add the value you want -> OK
    5. You are ready, test your new user agent!

    If you want to reset this value

    1. Go to about:config
    2. Right click on the preference "general.useragent.override"
    3. Reset
    4. You are ready (Note that the preference will stay empty, but the next time you will visit about:config will not be there)

    If you want an easier way to change/toggle user agent I suggest you use an addon.