Ubuntu builds firefox for trusty with g++-4.9 , I checked this on amd64 some time ago and the build logs tell me that the armhf toolchain is as well g++-4.9
0:08.79 checking for the target C++ compiler... /<<BUILDDIR>>/firefox-59.0.1+build1/debian/gcc-mozilla/g++ 0:08.90 checking whether the target C++ compiler can be used... yes 0:08.90 checking the target C++ compiler version... 4.9.4 0:08.98 checking the target C++ compiler works... yes 0:08.98 checking for the host C compiler... /<<BUILDDIR>>/firefox-59.0.1+build1/debian/gcc-mozilla/gcc 0:09.04 checking whether the host C compiler can be used... yes 0:09.04 checking the host C compiler version... 4.9.4 0:09.11 checking the host C compiler works... yes 0:09.11 checking for the host C++ compiler... /<<BUILDDIR>>/firefox-59.0.1+build1/debian/gcc-mozilla/g++ 0:09.18 checking whether the host C++ compiler can be used... yes 0:09.18 checking the host C++ compiler version... 4.9.4 0:09.25 checking the host C++ compiler works... yes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1711337 Title: Firefox crashes at start on armv7L after 55.0.1 update To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1711337/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs