rss-to-html.xslt

                <script>
                    <![CDATA[
                        /*
                         * Firefox doesn't support `disable-output-escaping="yes"`,
                         * so we need to unescape the HTML content manually.
                         *
                         * See this bug ticket from 2001 (!): https://bugzilla.mozilla.org/show_bug.cgi?id=98168
                         */
                        function isFirefox() {
                            return navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
                        }

                        function unescapeHTML(escapedHTML) {
                            const tempDiv = document.createElement('div');
                            tempDiv.innerHTML = escapedHTML;
                            return tempDiv.textContent || tempDiv.innerText || "";
                        }

                        addEventListener("DOMContentLoaded", function() {
                            if (isFirefox()) {
                                const divElements = document.querySelectorAll('div.e-content');
                                divElements.forEach(div => {
                                    const escapedHTML = div.innerHTML;
                                    const unescapedHTML = unescapeHTML(escapedHTML);
                                    div.innerHTML = unescapedHTML;
                                });
                            }
                        });
                    ]]>
                </script>