Hello, Thanks for bringing Thunderbird for Android. We have developed a Thunderbird AddOn, which works successfully on Windows, Linux and Mac Thunderbird Desktop programs. It would be wonderful to be able to use it on Android as well. I haven't seen any possibility to install an AddOn from a file (or from https://addons.thunderbird.net/). Am I missing something or is this not yet possible ? This seems possible with Firefox for Android, at least from the store and for some addons (https://support.mozilla.org/en-US/questions/1431645). Also, it looks like HTML signatures aren't usable as they are in the Desktop program. This would be a nice addition, and probably less complicated. Thanks in advance for your help.