Bug 1465544 - Add 'mozillaAddons' permission to Screenshots; r=ianbicking,_6a68

MozReview-Commit-ID: 7CoJJt34wqZ

--HG--
extra : rebase_source : 4dd027b9bc62fa33072d8d910d033865e9643f08

browser/extensions/screenshots/webextension/manifest.json

@@ -61,6 +61,7 @@
     "notifications",
     "clipboardWrite",
     "contextMenus",
+    "mozillaAddons",
     "<all_urls>",
     "https://screenshots.firefox.com/"
   ]