The problem disappeared after a fresh installation of context with
everything else untouched.

On Thu, 29 Oct 2020 at 11:29, Sylvain Hubert <champignoom@gmail.com> wrote:

> Hi,
>
> sorry if this is not the best place to file a bug but I found no working
> bug tracker for context.
>
> Environment:
> Manjaro 20.1.2, context 2020.09.20 23:02, firefox 82.0
>
> Step to reproduce:
> 1. `firefox --safe-mode  # start firefox without add-ons`
> 2.a`context --version  # or --help, or without arguments`
> 2.b or: `mtxrun --script font --list --all`
>
> Expected behavior:
> Nothing surprising should happen.
>
> Actual behavior:
> Firefox suddenly eats 100% of cpu
>
> I've noticed that `context` symlinks to `luametatex`, but the latter
> itself does not trigger the bug, neither do `luatex` or `latex`, so I
> believe this is a context-specific thing.
>
> Best,
> Sylvain
>