Confirmed, workaround given allows installing NoScript.
- Bug#928449: firefox-esr: Add-ons fail to install probably... Matthew Toseland
- Bug#928449: firefox-esr: Add-ons fail to install pro... Matthew Toseland
- Bug#928449: firefox-esr: Add-ons fail to install pro... g1
- Bug#928449: firefox-esr: Add-ons fail to install... Matthew Toseland