Remove or disable Firefox Default Browser Agent in Windows 11/10

Mozilla Firefox runs a new service called Default Browser Agent. It'due south basically a string of text that the browser sends to the webserver information technology's communicating with. The script contains information about the operating organisation currently in utilize, the browser running, its rendering engine, and other important details.

Firefox Default Browser Agent

Firefox installs this new process called default-browser-agent.exe at the following location –

C:\Program Files\Mozilla Firefox\

The main function of this process is to send telemetry back to Mozilla every 24 hours. Having discovered its location at present, let's delve a scrap deeper into the topic and find out:

How is Firefox Default Browser Agent executed
How to disable Firefox Default Browser Agent
How to remove Firefox Default Browser Agent

The reason cited backside collecting this telemetry information is that different browsers often render text, images, and other content differently. As such, information technology's important to leverage the telemetry data collected to understand default browser trends in a way to help makers improve the browser and display content properly. Besides, changing your user agent tin can likewise assist you lot in getting around browser-based restrictions.

1] How is Firefox Default Browser Amanuensis executed

The script is executed via a scheduled task named 'Firefox Default Browser Amanuensis' that becomes active as before long equally yous install the latest version of the browser or update it through 'Settings'. One time active, the job will brainstorm to collect data, relevant to the browser ready every bit default, locale configured in the operating system, the versions of the operating system installed, your previous default browser, and the currently installed version of Firefox.

Here'due south the script for the scheduled job –

C:\Program Files\Mozilla Firefox\default-browser-amanuensis.exe do-task

The task too gets scheduled to run every 24 hours

When the information is gathered, the following program volition be executed –

C:\Plan Files\Mozilla Firefox\pingsender.exe

The above program volition upload the data to Firefox'due south telemetry servers at

https://incoming.telemetry.mozilla.org/submit/default-browser-agent/1/default-browser/[UID]

Some may view this issue equally a alienation of privacy. As such, the makers of the browser offer sufficient leeway to terminate the Firefox Default Browser Agent program from sending such information.

You can either choose to disable it through the browser settings and group policies or remove Firefox Default Browser Agent, altogether.

2] How to disable Firefox Default Browser Amanuensis

To disable telemetry in Firefox via Firefox 'Settings',

Navigate to Firefox 'Menu' visible as 3 horizontal confined and select 'Options' from the list.

And then, switch to 'Privacy & Security' section and scroll down to 'Firefox Data Collection and Use'.

Here, undo'Permit Firefox to send technical and interaction data to Mozilla' and shut 'Settings'.

Hereafter, Firefox will no longer send any telemetry, including the default browser information.

three] How to remove Firefox Default Browser Amanuensis task

Although you have disabled the Default Browser Amanuensis from sending information, it may continue to execute every 24 hours so, you'll need to remove this task. Y'all tin easily practise and so past post-obit these steps.

Inside the Search bar of Start Carte du jour, type 'task' and so click on the 'Task Schedule' result when information technology shows upwardly to launch 'Chore Scheduler'.

Then, aggrandize the 'Task Scheduler Library' menu. Select 'Firefox' to brand default Browser Amanuensis scheduled chore entry visible.

Right-click the entry and cull 'Delete' selection.

The job will be removed completely. Close the awarding.

The scheduled task will at present be removed completely and the default-browser-agent.exe executable volition no longer exist executed after every 24-hours time lapse.

That's it!

Firefox Default Browser Agent