Firefox update

Hello everyone i am having another problem with one of my targets and for some reason i have the latest Firefox updated on my Parrot OS. But for some reason its not updated when its already updated i already used the commands as follows:

sudo apt remove firefox-esr && sudo apt install firefox

And in the command line i am getting results like this:
firefox is already the newest version (84.0-3).

But when i want to test on this site i am getting this message:

I dont understand ?

The website uses User-Agent from header to detect version of browser.
If http client sends any specific User-Agent, websites will detect it wrong.

Okay so does that mean i am up to date its just the user-agent is wrong ?