Rated 5 out of 5 stars

This add-on is great. I use it mainly for the "Is Junk" button.

For some people who want to use it with thunderbird 68.2+ an example manifest.json that works for me is (include it in the xpi archive, which is zip compressed; see also https://developer.thunderbird.net/add-ons/tb68/overlays):

"manifest_version": 2,
"applications": {
"gecko": {
"id": "junquilla@mesquilla.com",
"strict_min_version": "68.0"
"description": "Junk mail management by Mesquilla",
"developer": {
"name": "R Kent James",
"url": "http://mesquilla.com/extensions/junquilla"
"name": "JunQuilla",
"version": "1.0.4",
"icons": {
"32": "content/icon32x32.png"
"legacy": {
"type": "xul",
"options": {
"page": "chrome://junquillaapp/content/junquillaSetupWindow.xul",
"open_in_tab": true

I have not had time to even look at Jq with all the work on the other extensions. If the manifest changes sufficient, I could upgrade for 68 quickly.
have you noticed any functionality issues?