For what it's worth I signed up for Claude on Firefox without issues several days ago. I'm not saying the issue isn't real, but it isn't universal on the browser.
Yeah - I run the ESR version of Firefox, which is probably the root of it, but wide prevalence of people hitting the same issue for so long + the total radio silence from support is what really threw me. At least OpenAI pretends to care by responding with AI-generated pseudohelp…
