Bug 1254873 changed the default behavior of configure to not build the JS shell by default for non-standalone JS builds. The reasons are outlined in bug 1251324. tl;dr compiling the JS shell takes a non-significant amount of time for a feature that we believe most don't use.
To continue building the JS shell, add `ac_add_options --enable-js-shell` to your mozconfig. If you are doing a standalone JS build, the JS shell is still enabled by default. _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
