diff --git a/package.json b/package.json
index dd19c346a5f03249afe8ab3dcfc5e87fd9b89138..ee29cff2369615a778dd7fdae5cf6abcdc77c4fa 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
     "postinstall": "node -e \"try { require('fs').symlinkSync(require('path').resolve('node_modules/@bower_components'), 'www/lib', 'junction') } catch (e) { }\" && rm -f hooks/uglify-config.json hooks/after_prepare/uglify.js www/lib/moment/meteor/moment.js",
     "install-platforms": "ionic cordova prepare",
     "start": "ionic serve",
+    "start:firefox": "gulp webExtCompile && web-ext run --source-dir ./dist/web/ext/",
     "docker:build": "sudo docker build . -t cesium/release",
     "docker:run": "sudo docker run -ti --rm -p 8100:8100 -p 35729:35729 -v .:/cesium:rw cesium/release",
     "build:web": "gulp config --env default && gulp webBuild --release"
@@ -151,7 +152,8 @@
     "node-sass": "^4.14.0",
     "playup": "^1.1.0",
     "vinyl-fs": "^3.0.3",
-    "yargs": "^5.0.0"
+    "yargs": "^5.0.0",
+    "web-ext": "^4.2.0"
   },
   "peerDependencies": {
     "leaflet": "Leaflet/Leaflet#v0.7.7",
diff --git a/www/js/config.js b/www/js/config.js
index debbd583daccf2e4853c28c0e788bbc20afa9c87..f26963fff7216488015d04abb9961724feb803f7 100644
--- a/www/js/config.js
+++ b/www/js/config.js
@@ -120,7 +120,7 @@ angular.module("cesium.config", [])
 		}
 	},
 	"version": "1.6.7",
-	"build": "2020-05-06T08:36:54.246Z",
+	"build": "2020-05-06T08:58:03.325Z",
 	"newIssueUrl": "https://git.duniter.org/clients/cesium-grp/cesium/issues/new"
 })