smpl
Google is paying to have a search monopoly in Firefox, they don't support it. I don't believe those motives from Google exist or that they would have any legal impact. It's pure business and the only consideration they have is if they can afford to have Firefox users use a different search engine by default.
This being just a Mozilla github issuetracker and 80%+ of Mozillas income coming from Google with the contract up for renewal this year. We'll have to wait and see how much Google want this.
Why would they disable scroll-to-text-fragment? That's one of the things I'd like more browsers to agree on a standard for. I don't care which standard, but this seems to be the only one in use that'll let me link to a place on a page that doesn't have an anchor. Anything privacy related I missed?
It's called SeaMonkey now and AFAIK it is maintained and under community management.
I'm not sure I properly understand your problem, but perhabs your kernel is compiled with CONFIG_MODULE_SIG_FORCE. You can check with grep CONFIG_MODULE_SIG_FORCE /boot/config-$(uname -r). If it isn't you could try and run the kernel with module.sig_enforce=0 as a parameter and see if that helps.
If you don't need secure boot, then just disable it (if possible).
With the risk of breaking the internet, I see no reason to fight someone who is wrong.