Right now when I type a backtick ("`") in a #GitHub #Markdown input box in #Firefox 143.0.4 (deb packaged by Mozilla) on #Debian #Linux (Testing) in #GNOME, instead of it just being displayed as a backtick, it's being displayed as an accent on the following character.
See screenshots for what I mean.
Not happening in Chrome, or on Windows, or in text input boxes on at least one other website I tried.
Anybody else seeing this? Is it a Firefox bug or what? I'm baffled.

