They don't host them.
voxel
You can go back to image or audio captcha via the buttons below, still sucks too.
Yes, it got rebranded to Stoat due legal issues
While it all sounds very promising, it is a huge project. You can do it once, but are you willing to maintain it for the next 10 years? Keep up with updates, patch vulnerabilities, find vulnerabilities, and all of that? If not, it is likely not worth it.
Are you somehow related to this community?
You may be better off asking a Monero community; I think they have more knowledge on this matter.
LibreWolf won't be impacted, they're already considering to move to Phoenix instead.
Phoenix: https://codeberg.org/celenity/Phoenix
LibreWolf issue: https://codeberg.org/librewolf/issues/issues/2823
Phoenix is also used by IronFox.
Phoenix is also an alternative which can be used with Vanilla Firefox.
Since the author edited the title, Phoenix, according to the credits does not rely on Arkenfox at all.
Not everyone installs browser extensions themselves; many have them installed by relatives or friends.
Some people can't tell the difference between a search engine and a browser. Some people don't know how to install software, and use whatever they got. Some people don't know better.
Them losing access to a tool like uBlock Origin, with the only alternatives being weaker options, is harmful.
I know of people experiencing blockage because they use uBOL, uBO was more effective at bypassing those blocks I assume.
Not privacy-related. You might want to visit c/piracy