Because using the GET parameters (everything after the questionmark) for tracking isn't their originally intended purpose. Which means that there are many sites that do not use them for tracking.

A classic is search engines having the search parameter and page number there. If you were then to copy such a link without the parameters you would just end up on the homepage.

Now, Firefox probably has a list of common tracking parameters and common "legitimate" parameters. But those cannot be guaranteed to be 100 % correct. Leading to the error of someone intending to link to a specific page but ending up linking to something more generic.

@bananabob @firefox I wouldn't be surprised if that breaks a bunch of weird stuff. But certainly, this is one of those things we shouldn't need to enable add-ons for IMO

I just wish that I could remove the option to copy text from the image because I've never once wanted to do that but I have hit the option a gazillion times

@bananabob Because it's hard to know what is tracking stuff on the end of a URI and what is stuff needed to make The site work (on some sites).@firefox