Ubuntu 14.04 reached end-of-life in April 2019, and the Extended Security Maintenance plan (which is a paid option) doesn't include firefox (see https://wiki.ubuntu.com/SecurityTeam/ESM/14.04).
** Changed in: firefox (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1814465 Title: Firefox 65 cannot load Flash on trusty because of libxul.so broken dependency Status in firefox package in Ubuntu: Won't Fix Bug description: Package: firefox 65.0+build2-0ubuntu0.14.04.1 Error message in shell: /usr/lib/firefox/plugin-container: symbol lookup error: /usr/lib/firefox/libxul.so: undefined symbol: wl_surface_interface [Parent 3419, Gecko_IOThread] WARNING: pipe error (151): Connection reset by peer: file /build/firefox-mzqi2a/firefox-65.0+build2/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 349 Steps: 1) Run firefox 65 on Ubuntu 14.04.5 LTS in a terminal 2) Visit a flash site and no flash content is displayed 3) Look in the terminal for the libxul.so error message Note: This bug is similar to Bug #1720908 fixed in 2017 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1814465/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp