Fixes for Firefox src packaging

pkg/extension/Makefile

@@ -12,7 +12,7 @@ firefox: build
 	FIREFOX_PKG_NAME="firefox-$(shell cat dist/manifest.json| jq -j .version).zip" ; \
 	FIREFOX_SRC_NAME="firefox-$(shell cat dist/manifest.json| jq -j .version)-src.zip" ; \
 	pushd dist; zip -r ../$$FIREFOX_PKG_NAME *; popd; \
-	pushd src; zip -r ../$$FIREFOX_SRC_NAME *; popd; \
+	zip -r $$FIREFOX_SRC_NAME src/* yarn.lock package.json .env.production webpack.js replace-with-process-env.js; \
 	echo "done"
 
 chrome: build

pkg/extension/package.json

@@ -26,8 +26,5 @@
   "dependencies": {
     "nanoid": "^4.0.2",
     "uuid": "^8.3.2"
-  },
-  "volta": {
-    "extends": "../../package.json"
   }
 }

pkg/extension/src/manifest.json

@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "process.env.EXTENSION_NAME",
   "short_name": "process.env.EXTENSION_NAME",
-  "version": "2.8.0",
+  "version": "2.8.2",
   "description": "Save PDFs and Articles to your Omnivore library",
   "author": "Omnivore Media, Inc",
   "default_locale": "en",