I'm using Firefox Developer Edition while developing a website and that frequently involves making a change on the backend and refreshing the page to look at my changes. For some reason, however, I absolutely cannot get firefox to consistently reload the page completely FRESH and I cannot see changes that I have made unless I open the page in a completely new browser such as chrome/edge. This is what I've tried: Disable HTTP Cache (when toolbox is open) Shift-f5 ctrl-shift-r network.http.use-cache - set to false browser.cache.disk.enable and browser.cache.memory.enable - both set to false Nothing seems to be working and I'm about to tear my hair out here. Is there anything else I can look at to confirm that these are not working? I've literally removed all my jQuery from a script block and it is all still visible. I can then open my page in Edge and the script block is empty.