CloudFlare Firefox Cache Problem

I have a cache problem in FireFox. When something changes on my website, Firefox doesn’t show the changes. This problem does not occur on e.g. Chrome, EDGE. The only solution is to force FireFox to read by using CTRL + F5. Then it shows the changes on the website. When I turn on development mode on CF the problem with firefox disappears. When I open the page in a private window, the problem don’t disappears. Is it a problem with the FireFox itself, or is there something wrong with my Cloudflare cache configuration that FireFox does not show the current version of the web page content in normal operation?