Not sure if this is the right place for this, but recently I haven't been able to use my right arrow key to navigate forward through a chapter in Firefox. The issue only seems to happen with my right arrow key; left arrow still takes me back a page, and up and down still scroll the page I'm currently on, but right arrow does not take me forward a page like it used to. Only seems to be happening in Firefox, it works just fine in Edge and Chrome. I'm not 100% sure when this started happening, but I believe it was within the last two weeks.
Using Firefox 126.0.1 (64 bit), in case that matters, thanks in advance for the help!
I'm seeing the same after Firefox updated to 127.0. The right arrow key does not work but the left one does. Curiously it only happens at a specific page width. The key starts working when I resize the window or fiddle with the zoom level.
I'm not sure I can provide any useful info beyond that. For me it triggers when $(window).width() is like 1300-1350, above or below that everything's fine. Also no errors in the console when this happens.