13.6.19 will not install on firefox esr
13.6.19 will not install on firefox esr
13.6.19 from addons.mozilla.org will no install on firefox 140.10.2esr - there is only a brief flash of the permissions pop-up
Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0