--- a/.gecko_rev.yml
+++ b/.gecko_rev.yml
@@ -1,11 +1,11 @@
 ---
 GECKO_BASE_REPOSITORY: https://hg.mozilla.org/mozilla-unified
-GECKO_HEAD_REPOSITORY: https://hg.mozilla.org/releases/mozilla-beta
+GECKO_HEAD_REPOSITORY: https://hg.mozilla.org/releases/mozilla-release
 GECKO_HEAD_REF: THUNDERBIRD_68_VERBRANCH
 GECKO_HEAD_REV: f0c0729a02198b423b995f2873adac7cb0b96435
 
 ### For comm-central
 # GECKO_BASE_REPOSITORY: https://hg.mozilla.org/mozilla-unified
 # GECKO_HEAD_REPOSITORY: https://hg.mozilla.org/mozilla-central
 # GECKO_HEAD_REF: default
 #

--- a/mail/confvars.sh
+++ b/mail/confvars.sh
@@ -17,19 +17,19 @@ BROWSER_CHROME_URL=chrome://messenger/co
 
 MOZ_BRANDING_DIRECTORY=$commreltopsrcdir/mail/branding/nightly
 MOZ_OFFICIAL_BRANDING_DIRECTORY=$commreltopsrcdir/mail/branding/thunderbird
 
 MOZ_APP_ID={3550f703-e582-4d05-9a08-453d09bdfdc6}
 # This should usually be the same as the value MAR_CHANNEL_ID.
 # If more than one ID is needed, then you should use a comma separated list
 # of values.
-ACCEPTED_MAR_CHANNEL_IDS=thunderbird-comm-beta,thunderbird-comm-release
+ACCEPTED_MAR_CHANNEL_IDS=thunderbird-comm-release
 # The MAR_CHANNEL_ID must not contain the following 3 characters: ",\t "
-MAR_CHANNEL_ID=thunderbird-comm-beta
+MAR_CHANNEL_ID=thunderbird-comm-release
 MOZ_PROFILE_MIGRATOR=1
 MOZ_BINARY_EXTENSIONS=1
 MOZ_SEPARATE_MANIFEST_FOR_THEME_OVERRIDES=1
 
 # Enable building ./signmar and running libmar signature tests
 MOZ_ENABLE_SIGNMAR=1
 
 MOZ_DEVTOOLS=all