Last time I checked, loading local files as a new tab page required either installing a third party add-on/extension or creating your own[0] in both Firefox and

Last time I checked, loading local files as a new tab page required either installing a third party add-on/extension or creating your own[0] in both Firefox and Chrome. Is that still the case? Did you find an easier option? [0] Way easier than one would assume, you just need a manifest file next to your HTML file. EDIT: A local web server instead of loading the HTML file directly also works and avoids the need for add-ons/extensions.