[mathnode]

Of all the unnecessary AI integrations; firefox is the one I am least concerned or annoyed about. I will however be disabling anything AI related they introduce.

[kgwxd]

The presence of the code itself is a threat. There's no good reason it shouldn't be an extension, beholden to all the same "security" restrictions other extensions are.

[HWR_14]

Yes, a web browser should prioritize security and simplicity, and put optional features in a sandbox.