I was stuck on Thunderbird 60 for a long while for the exact same reason. I'm now using tbkeys on Thunderbird 68; it works great. https://github.com/willsALMANJ

I was stuck on Thunderbird 60 for a long while for the exact same reason. I'm now using tbkeys on Thunderbird 68; it works great. https://github.com/willsALMANJ/tbkeys https://github.com/willsALMANJ/tbkeys