On 4/14/21, Celejar <cele...@gmail.com> wrote: > Hi, > > I recently switched to Firefox's native HTTPS-Only mode from the > HTTPS Everywhere extension, and I've just made the nasty discovery that > a bunch of links that had been returning 404, which I had been assuming > were dead links, were actually perfectly valid pages, which Firefox had > been "upgrading" to HTTPS, and then getting 404s from web servers that > weren't offering them via HTTPS (but still apparently accepting > connections via HTTPS). Clicking on the little lock icon and turning > HTTPS-Only mode off for the website doesn't seem to have any effect - > the only thing that lets me actually access these pages is turning off > HTTPS-Only mode via the general Settings page (or about:config). > > When the website doesn't offer HTTPS at all, then Firefox offers to > connect via HTTP, after a warning, and that's fine. But having pages > become completely inaccessible is intolerable - I now have to check > every 404 I get by turning off HTTPS-Only mode and seeing if the > page is actually there. Am I missing something here, or is HTTPS-Only > mode just badly broken? > > https://blog.mozilla.org/security/2020/11/17/firefox-83-introduces-https-only-mode/ > https://news.ycombinator.com/item?id=25121604 > > Celejar
Not sure if useful at all, but I've been using firefox-release (just running the binary from Mozilla) as main browser for years, and enabled HTTPS- Only Mode upon HTTPS Everywhere add-on/extension simply because I had it installed and I was letting it be (?). And that (unexpected?) combination seems to work fine (in comparison with your case). Maybe you want to try it just to avoid that extra-work until a proper solution appears... Best regards.