Google (The company behind Chrome) wants to create a type of DRM for web pages. Google claims that this will help with things like bot traffic, spam, etc.
Mozilla (The company behind firefox) is opposed to creating this DRM because it has no benefit to the end user and is likely to be harmful to the openness of the internet.
They likely have chosen a lot of programs on the installer. I have had my current install for a few years and I’m sitting at 2029 packages