Is there a way in Firefox to halt javascript execution on a page that has already loaded? What a web search suggests is pausing the debugger, but in current Firefox this grays out the entire page, disables things like scrolling, and overlays the page with a "DEBUGGER PAUSED" box. I want to continue reading the page I just want to stop Javascript.
The debugger has a "disable Javascript", as does uBlock, but both of these appear to entail reloading the page, which may stop it from loading at all.