Happening to me also. Intel graphics. I've removed everything and reinstalled it. Same. But the Firefox Snap works fine. So do Chromium and Opera. Only since the upgrade to 18.10 64bit
----code [GFX1-]: Failed to lock new back buffer. [Parent 2199, Main Thread] WARNING: failed to open shm: Permission denied: file /build/firefox-MtV3KQ/firefox-63.0+build1/ipc/chromium/src/base/shared_memory_posix.cc, line 129 ----/code -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798999 Title: firefox windows are black in Ubuntu 18.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1798999/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
