firefox-esr stopped working after June 18 update
06-24-2021, 03:23 PM
(06-23-2021, 10:38 PM)ryo Wrote: Warning: technical talk.
Apparently, Firefox ESR seems to want to push the HTTP/2 protocol in a similar way as how Mozilla and Google pushed HTTPS a few years ago.
The HTTP/2 protocol must be enabled in the web server software itself (which is literally 1 extra keyword in nginx, not sure about Apache).
I have confirmed it with 1 website I know has HTTP/2 enabled, and the warning triangle didn't appear.
This is why a warning triangle appears even on HTTPS websites if the server administrator didn't enable HTTP/2 (yet).
OK, thanks for clarfication!
What really confuses me is that Mozilla implements this new (game braking) change in the ESR version (before the regular one)... I always thought of ESR as the more stable and better tested, 'conservative' FF version (which lacks probably new features).
