You know how some websites have custom keyboard shortcuts that override those of your browser (looking at you Notion.so)? Well there are two ways of dealing with it.
Go into Firefox's settings and globally disable keyboard shortcuts.
Install this extension and toggle keyboard shortcuts on and off.
Obviously option #2 is the best. It's important to note that built-in Firefox shortcuts (like CMD + 1, or whatever) remain intact. It's just the custom ones that web developers implement to make their website feel more like a native app.
