It seems that Firefox has switched to an LLM based translation option by default. This is a problem for a couple reasons:
Decisions like this, user-hostile shoehorning decisions, being made by Mozilla make me trust this browser less. It's getting to be indistinguishable from Chrome, and you should be worried about that if you don't want to lose a substantial part of you user base. In addition, it creates a very negative user experience, since I feel like I am being manipulated and my ability to consent to specific technology is being removed.
I would genuinely prefer an option on what translation engine to use, similar to the options given for search engines. Until then, I will be looking for an alternative browser.