diff --git a/manifest.json b/manifest.json
index e31ad06..dddb374 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "CompactHeader",
   "description": "Add ability to reduce header size to one or two lines. Linkify subjects in RSS feeds.",
-  "version": "2.3.0beta1",
+  "version": "3.0.0beta1",
   "author": "Joachim Herb",
   "homepage_url": "http://compactheader.mozdev.org/",
   "legacy": {
@@ -14,7 +14,7 @@
   "applications": {
     "gecko": {
       "id": "{58D4392A-842E-11DE-B51A-C7B855D89593}",
-      "strict_min_version": "65.0"
+      "strict_min_version": "68.0"
     }
   }
 }