[Bug 1835633] [NEW] firefox esr user agent wrong

[tim]

Public bug reported:

i am using linux mint sarah, 64 bit, xfce desktop and firefox esr installed from the ppa with the following information:
apt policy firefox-esr
firefox-esr:
  Installed: 60.1.0esr-2~16.04.york1
  Candidate: 60.7.2esr-1~16.04.york0
  Version table:
     60.7.2esr-1~16.04.york0 500
        500 http://ppa.launchpad.net/jonathonf/firefox-esr/ubuntu xenial/main amd64 Packages
 *** 60.1.0esr-2~16.04.york1 100
        100 /var/lib/dpkg/status
issue is that i cannot install any addins and most websites report that i am using an outdated version of firefox.  image is located at https://imgur.com/gallery/w6QAZ2o showing the message and the version.  some websites don't load at all and one i just started frequenting is unusable on this computer.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1835633

Title:
  firefox esr user agent wrong

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