bug#29859: 25.3; MozRepl support is/will be no longer useful

[Stefan Kangas]

Tim Landscheidt <tim@tim-landscheidt.de> writes:

> Firefox 57 ("Quantum") removed the possibility to install
> extensions à la MozRepl
> (https://addons.mozilla.org/de/firefox/addon/mozrepl/).  To
> quote MozRepl's README.md (https://github.com/bard/mozrepl):
>
> | Important Notice
>
> | Key technologies upon which MozRepl depends will be retired
> | from the Mozilla platform in November 2017.  If you are re-
> | lying on MozRepl, please investigate migration paths.  The
> | last known compatible version is Firefox 54.
>
> | […]
>
> The current Firefox ESR release is based on Firefox 52 and
> should allow MozRepl to be installed until August 2018
> (https://www.mozilla.org/en-US/firefox/organizations/), but
> I did not test that.
>
> Thus the large code section in lisp/progmodes/js.el relating
> to MozRepl is unfortunately no longer useful and could be
> removed now or in September 2018 at the latest.  (Personal
> guess: Nobody is using Emacs with Firefox ESR, so removing
> it from the next release would not hurt anyone.)

So I guess we could mark this functionality as obsolete in Emacs 28.1.

Best regards,
Stefan Kangas