New
#1
Thunderbird Add-on Problem
I have a Dell E5500 laptop that hasn't been used for a few months. I went into Thunderbird and noticed that my Theme Font and Size Changer add-on wasn't working. I reinstalled the add-on and updated Thunderbird to version 52.3.0 and the add-on to version 55.1.These are the latest versions and are supposed to be compatible. The Theme Font and Size Changer add-on still doesn't work. This add-on is working in Firefox. My OS is Windows 10. Any idea why this has stopped working?