browser.messageDisplayScripts.register doesn't work on Thunderbird 78.5.0 on Ubuntu 20
I am trying to build an add-on to customize the view of the messages, but when calling:
browser.messageDisplayScripts.register
It doesn't do the job. I tried on the windows version and it does as exepcted. But on the linux version this doesn't work.
I am trying to build an add-on to customize the view of the messages, but when calling:
'''browser.messageDisplayScripts.register'''
It doesn't do the job. I tried on the windows version and it does as exepcted. But on the linux version this doesn't work.